nRF9160 not connecting to LTE-M network

[AlinP]

Hi,

Last week we received Nordic's Thingy:91 development kit and prototyping platform for nRF9160.

The kit also included 1x iBasis SIM card. According to iBasis, LTE-M is the local cellular standard in Bucharest, Romania.

We've went trough registering the device on the nrfcloud and failed with the following error:

---

There was an error adding your device: No device found with id 'nrf-352656100830366'. Verify you are passing a valid device id and not a device name. Also ensure that your device is powered on and its LED(s) indicate that it is connected to nRFCloud. If the LED(s) do not indicate a connection, there may be a problem with your device certificate. In that case, search Nordic DevZone for "certificate update" for a possible solution.

---

So, we've then went troguht the certificate update process described over here. Since LTE-M cellular connectivity is not available with the pre-compiled thingy91_at_client and, since that is the only up-to-date binary file that supports long AT commands (3kB or higher), we had no choice but to go trough the hassle of installing all the necessary (God knows how many) tools for compiling our own binaries from the up-to-date releases.

As described in the Thingy:91 Firmware Update using MCUboot tutorial we've pre-compiled the v1.1.0 nRF Connect SDK with the following 2 modifications made to the source code:

1.  the CONFIG_AT_CMD_RESPONSE_MAX_LEN was modified from a default value of 2700 to a value of 3074
2.  the AT_HOST_STACK_SIZE was modified from a value of 512 to a value of 1024. This was done because the modem (Zephyr RTOS) was crashing with a stack overflow error with only the first modification made (CONFIG_AT_CMD_RESPONSE_MAX_LEN set to 3074)

From the obtained build directory, we've uploaded the app_update.bin via mcumgr app and then succesfully updated the certificates via LTE Link Monitor.

After all this steps, the board still refuses to connect to the LTE-M network. I'll attach some of the terminal monitor printscreens bellow.

Any help regarding the issue would be greatly appreciated!

[Øyvind]

Hello, 

According to iBasis, LTE-M is the local cellular standard in Bucharest, Romania.

Yes, this is correct, however with limited coverage. I would ask iBasis what limited coverage means. 

There was an error adding your device: No device found with id 'nrf-352656100830366'. Verify you are passing a valid device id and not a device name. Also ensure that your device is powered on and its LED(s) indicate that it is connected to nRFCloud. If the LED(s) do not indicate a connection, there may be a problem with your device certificate. In that case, search Nordic DevZone for "certificate update" for a possible solution.

There is currently a bug in nRF Cloud that we are working with. Your issue seems to be related to this issue. I will forward your IMEI information

Since LTE-M cellular connectivity is not available with the pre-compiled thingy91_at_client 

LTE-M or NB-IoT is irrelevant for the AT Client. You can configure both using AT client and the %XSYSTEMMODE command. Make sure to issue AT+CFUN=4 first, to turn off modem.

After all this steps, the board still refuses to connect to the LTE-M network. I'll attach some of the terminal monitor printscreens bellow.

Can you please provide full output from the LTE Link Monitor? Please issue the command AT%XMONITOR (as the example in the bottom of page) as well.

Thanks!

Kind regards,

Øyvind

[AlinP]

Øyvind said:

Yes, this is correct, however with limited coverage. I would ask iBasis what limited coverage means. 

 We sent a request to iBasis having them confirming the LTE-M coverage at our location, in Bucharest.

Øyvind said:

There is currently a bug in nRF Cloud that we are working with. Your issue seems to be related to this issue. I will forward your IMEI information

That's good to know, but still, the modem should be able to connect and register with the LTE-M network, independent of the nrf cloud bug.

Øyvind said:

LTE-M or NB-IoT is irrelevant for the AT Client. You can configure both using AT client and the %XSYSTEMMODE command. Make sure to issue AT+CFUN=4 first, to turn off modem.

That's really great news! We've now flashed the thingy91_at_client_v0.2.3.bin (as it is a good, thrust-worthy binary compared to the one we've obtained via compiling the v1.1.0 SDK with the 2 mentioned modifications) via mcumgr.

1. We've went trough succesfully uploading the new certificates. 
2. We've put the modem in offline mode (AT+CFUN=4)
3. We've then enabled the modem with LTE-M network active (AT%XSYSTEMMODE=1,0,1,0)

The modem still does not connect to the network 

 

Øyvind said:

Can you please provide full output from the LTE Link Monitor? Please issue the command AT%XMONITOR (as the example in the bottom of page) as well.

 Sure, here's the output:

AT+CFUN?
+CFUN: 1
OK
AT+CGSN=1
+CGSN: "352656100830366"
OK
AT+CGMI
Nordic Semiconductor ASA
OK
AT+CGMM
nRF9160-SICA
OK
AT+CGMR
mfw_nrf9160_1.0.1
OK
AT+CEMODE?
+CEMODE: 2
OK
AT%XCBAND=?
%XCBAND: (1,2,3,4,5,8,12,13,14,17,18,19,20,25,26,28,66)
OKAT+CMEE?
+CMEE: 1
OK
AT+CNEC?
+CNEC: 24
OK
AT+CGEREP?
+CGEREP: 1,0
OK
AT+CIND=1,1,1
OK
AT+CEREG=2
OK
AT+CEREG?
+CEREG: 2,4,"FFFE","FFFFFFFF",7
OK
AT%CESQ=1
OK
AT+CESQ
+CESQ: 99,99,255,255,255,255
OK
AT%XSIM=1
OK
AT%XSIM?
%XSIM: 1
OKAT+CPIN?
+CPIN: READY
OK
AT+CPINR="SIM PIN"
+CPINR: "SIM PIN",3
OK
AT+CIMI
204080813516240
OK
AT+CESQ
+CESQ: 99,99,255,255,255,255
OK

AT%XMONITOR
%XMONITOR: 2
OK

Later edit: Something that concerns me is that the AT+CPIN? command returns the following:

AT+CPINR="SIM PIN"
+CPINR: "SIM PIN",3

However, the GUI of the LTE Link Monitor cleary says in the top right info panel: Pin: no PIN required

Trying to set the PIN number via AT+CPIN="0000" results in ERROR being displayed. Could you please offer a clarification regarding this?

[Øyvind]

AlinP said:

That's good to know, but still, the modem should be able to connect and register with the LTE-M network, independent of the nrf cloud bug.

 Yes, you are correct, it does not prevent your device from connecting. That said, the command XMONITOR output 2, which means: Not registered, but UE is currently trying to attach or searching an operator to register to. How long have you let it tried to connect? The output you provided is very short, you should get more information. 

In LTE Link Monitor, please click on Open Log File after 5 - 10 minutes, to see what information it gives. 

 

AlinP said:

Something that concerns me is that the AT+CPIN? command returns the following:

 Please note that it says AT+CPINR and not AT+CPIN. CPINR = The set command returns the number of remaining Personal Identification Number (PIN) retries for the User Equipment (UE) passwords.

While AT+CPIN? == READY, which is correct, and indicates no pin required. 

[AlinP]

Here is the output after more than 20 min. of runtime:

2019-11-29T10:15:41.724Z INFO Application data folder: C:\Users\alin.paun\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2019-11-29T10:15:41.805Z DEBUG App pc-nrfconnect-linkmonitor v1.1.1 official
2019-11-29T10:15:41.805Z DEBUG App path: C:\Users\alin.paun\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2019-11-29T10:15:41.806Z DEBUG nRFConnect 3.3.0 is supported by the app (^3.2.0)
2019-11-29T10:15:41.806Z DEBUG nRFConnect path: C:\Users\alin.paun\AppData\Local\Programs\nrfconnect\resources\app.asar
2019-11-29T10:15:41.806Z DEBUG HomeDir: C:\Users\alin.paun
2019-11-29T10:15:41.806Z DEBUG TmpDir: C:\Users\ALIN~1.PAU\AppData\Local\Temp
2019-11-29T10:15:41.809Z VERBOSE Could not fetch serial number for serial port at COM1
2019-11-29T10:15:43.385Z INFO Modem port is opened
2019-11-29T10:15:43.392Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-11-29T10:15:43.419Z DEBUG modem << ***** B+CFUN: 4\x0D
2019-11-29T10:15:43.423Z DEBUG modem << \x0A
2019-11-29T10:15:43.424Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:15:43.443Z DEBUG modem >> AT+CFUN=1\x0D\x0A
2019-11-29T10:15:43.487Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.601Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-11-29T10:16:11.606Z DEBUG modem << +CFUN: 1\x0D
2019-11-29T10:16:11.620Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.622Z DEBUG modem >> AT+CGSN=1\x0D\x0A
2019-11-29T10:16:11.630Z DEBUG modem << +CGSN: "352656100830366"\x0D
2019-11-29T10:16:11.632Z DEBUG modem << \x0A
2019-11-29T10:16:11.634Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.637Z DEBUG modem >> AT+CGMI\x0D\x0A
2019-11-29T10:16:11.644Z DEBUG modem << Nordic Semiconductor ASA\x0D
2019-11-29T10:16:11.651Z DEBUG modem << \x0A
2019-11-29T10:16:11.653Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.661Z DEBUG modem >> AT+CGMM\x0D\x0A
2019-11-29T10:16:11.666Z DEBUG modem << nRF9160-SICA\x0D
2019-11-29T10:16:11.669Z DEBUG modem << \x0A
2019-11-29T10:16:11.671Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.675Z DEBUG modem >> AT+CGMR\x0D\x0A
2019-11-29T10:16:11.685Z DEBUG modem << mfw_nrf9160_1.0.1\x0D
2019-11-29T10:16:11.687Z DEBUG modem << \x0A
2019-11-29T10:16:11.690Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.691Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.0.1] SerNr: 352656100830366
2019-11-29T10:16:11.692Z DEBUG modem >> AT+CEMODE?\x0D\x0A
2019-11-29T10:16:11.701Z DEBUG modem << +CEMODE: 2\x0D
2019-11-29T10:16:11.703Z DEBUG modem << \x0A
2019-11-29T10:16:11.704Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.717Z DEBUG modem >> AT%XCBAND=?\x0D\x0A
2019-11-29T10:16:11.727Z DEBUG modem << %XCBAND: (1,2,3,4,5,8,12,13,14,17,18,19,20,25,26,28,66)\x0D
2019-11-29T10:16:11.729Z DEBUG modem << \x0A
2019-11-29T10:16:11.731Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.740Z DEBUG modem >> AT+CMEE?\x0D\x0A
2019-11-29T10:16:11.745Z DEBUG modem << +CMEE: 0\x0D
2019-11-29T10:16:11.746Z DEBUG modem << \x0A
2019-11-29T10:16:11.748Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.755Z DEBUG modem >> AT+CMEE=1\x0D\x0A
2019-11-29T10:16:11.759Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.761Z DEBUG modem >> AT+CNEC?\x0D\x0A
2019-11-29T10:16:11.767Z DEBUG modem << +CNEC: 0\x0D
2019-11-29T10:16:11.770Z DEBUG modem << \x0A
2019-11-29T10:16:11.771Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.774Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:16:11.780Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:16:11.785Z DEBUG modem << \x0A
2019-11-29T10:16:11.786Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.791Z DEBUG modem >> AT+CNEC=24\x0D\x0A
2019-11-29T10:16:11.795Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.801Z DEBUG modem >> AT+CGEREP?\x0D\x0A
2019-11-29T10:16:11.808Z DEBUG modem << +CGEREP: 0,0\x0D
2019-11-29T10:16:11.809Z DEBUG modem << \x0A
2019-11-29T10:16:11.811Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.819Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-11-29T10:16:11.824Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.827Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-11-29T10:16:11.833Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.836Z DEBUG modem >> AT+CGEREP=1\x0D\x0A
2019-11-29T10:16:11.841Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.844Z DEBUG modem >> AT+CIND=1,1,1\x0D\x0A
2019-11-29T10:16:11.851Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.854Z DEBUG modem >> AT+CEREG=2\x0D\x0A
2019-11-29T10:16:11.858Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.861Z DEBUG modem >> AT+CEREG?\x0D\x0A
2019-11-29T10:16:11.868Z DEBUG modem << +CEREG: 2,4,"FFFE","FFFFFFFF",7\x0D
2019-11-29T10:16:11.871Z DEBUG modem << \x0A
2019-11-29T10:16:11.872Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.880Z DEBUG modem >> AT%CESQ=1\x0D\x0A
2019-11-29T10:16:11.886Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.888Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:16:11.895Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:16:11.896Z DEBUG modem << \x0A
2019-11-29T10:16:11.898Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.906Z DEBUG modem >> AT%XSIM=1\x0D\x0A
2019-11-29T10:16:11.910Z DEBUG modem << OK\x0D
2019-11-29T10:16:11.913Z DEBUG modem >> AT%XSIM?\x0D\x0A
2019-11-29T10:16:11.918Z DEBUG modem << %XSIM: 1\x0D
2019-11-29T10:16:11.920Z DEBUG modem << \x0A
2019-11-29T10:16:11.921Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.928Z DEBUG modem >> AT+CPIN?\x0D\x0A
2019-11-29T10:16:11.936Z DEBUG modem << +CPIN: READY\x0D
2019-11-29T10:16:11.938Z DEBUG modem << \x0A
2019-11-29T10:16:11.939Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.944Z DEBUG modem >> AT+CPINR="SIM PIN"\x0D\x0A
2019-11-29T10:16:11.956Z DEBUG modem << +CPINR: "SIM PIN",3\x0D
2019-11-29T10:16:11.958Z DEBUG modem << \x0A
2019-11-29T10:16:11.959Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.968Z DEBUG modem >> AT+CIMI\x0D\x0A
2019-11-29T10:16:11.973Z DEBUG modem << 204080813516240\x0D
2019-11-29T10:16:11.974Z DEBUG modem << \x0A
2019-11-29T10:16:11.975Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:11.977Z INFO IMSIdentity: 204080813516240
2019-11-29T10:16:21.763Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:16:21.770Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:16:21.773Z DEBUG modem << \x0A
2019-11-29T10:16:21.775Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:31.765Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:16:31.772Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:16:31.774Z DEBUG modem << \x0A
2019-11-29T10:16:31.776Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:41.762Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:16:41.768Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:16:41.770Z DEBUG modem << \x0A
2019-11-29T10:16:41.771Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:16:51.761Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:16:51.767Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:16:51.769Z DEBUG modem << \x0A
2019-11-29T10:16:51.770Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:17:01.762Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:17:01.768Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:17:01.770Z DEBUG modem << \x0A
2019-11-29T10:17:01.771Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:17:11.762Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:17:11.769Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:17:11.771Z DEBUG modem << \x0A
2019-11-29T10:17:11.772Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:17:13.814Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:17:13.823Z DEBUG modem << +CEREG: 2,"FFFE","FFFFFFFF",7\x0D\x0A\x00
2019-11-29T10:17:21.762Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:17:21.776Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:17:21.778Z DEBUG modem << \x0A
2019-11-29T10:17:21.779Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:17:31.761Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:17:31.772Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:17:31.774Z DEBUG modem << \x0A
2019-11-29T10:17:31.775Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:17:41.762Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:17:41.770Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:17:41.772Z DEBUG modem << \x0A
2019-11-29T10:17:41.773Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:17:51.761Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:17:51.770Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:17:51.772Z DEBUG modem << \x0A
2019-11-29T10:17:51.773Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:18:01.761Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:18:01.771Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:18:01.773Z DEBUG modem << \x0A
2019-11-29T10:18:01.774Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:18:07.563Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:18:11.761Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:18:11.776Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:18:11.778Z DEBUG modem << \x0A
2019-11-29T10:18:11.778Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:18:21.760Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:18:21.772Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:18:21.774Z DEBUG modem << \x0A
2019-11-29T10:18:21.776Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:18:31.762Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:18:31.772Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:18:31.773Z DEBUG modem << \x0A
2019-11-29T10:18:31.775Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:18:41.761Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:18:41.771Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:18:41.772Z DEBUG modem << \x0A
2019-11-29T10:18:41.773Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:18:51.760Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:18:51.766Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:18:51.773Z DEBUG modem << \x0A
2019-11-29T10:18:51.774Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:19:01.304Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:19:01.760Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:19:01.774Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:19:01.776Z DEBUG modem << \x0A
2019-11-29T10:19:01.777Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:19:11.759Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:19:11.774Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:19:11.778Z DEBUG modem << \x0A
2019-11-29T10:19:11.782Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:19:21.759Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:19:21.765Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:19:21.766Z DEBUG modem << \x0A
2019-11-29T10:19:21.767Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:19:32.555Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:19:32.561Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:19:32.563Z DEBUG modem << \x0A
2019-11-29T10:19:32.563Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:19:42.555Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:19:42.562Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:19:42.564Z DEBUG modem << \x0A
2019-11-29T10:19:42.565Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:19:52.553Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:19:52.559Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:19:52.561Z DEBUG modem << \x0A
2019-11-29T10:19:52.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:20:02.553Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:20:02.559Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:20:02.561Z DEBUG modem << \x0A
2019-11-29T10:20:02.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:20:04.976Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:20:12.554Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:20:12.569Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:20:12.571Z DEBUG modem << \x0A
2019-11-29T10:20:12.572Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:20:22.553Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:20:22.567Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:20:22.569Z DEBUG modem << \x0A
2019-11-29T10:20:22.570Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:20:32.552Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:20:32.567Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:20:32.569Z DEBUG modem << \x0A
2019-11-29T10:20:32.570Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:20:42.552Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:20:42.567Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:20:42.568Z DEBUG modem << \x0A
2019-11-29T10:20:42.569Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:20:52.551Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:20:52.558Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:20:52.559Z DEBUG modem << \x0A
2019-11-29T10:20:52.560Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:21:02.557Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:21:02.575Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:21:02.577Z DEBUG modem << \x0A
2019-11-29T10:21:02.578Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:21:12.553Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:21:12.560Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:21:12.562Z DEBUG modem << \x0A
2019-11-29T10:21:12.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:21:22.552Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:21:22.558Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:21:22.560Z DEBUG modem << \x0A
2019-11-29T10:21:22.561Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:21:32.554Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:21:32.562Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:21:32.563Z DEBUG modem << \x0A
2019-11-29T10:21:32.565Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:21:42.552Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:21:42.559Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:21:42.561Z DEBUG modem << \x0A
2019-11-29T10:21:42.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:21:52.551Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:21:52.557Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:21:52.559Z DEBUG modem << \x0A
2019-11-29T10:21:52.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:22:02.552Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:22:02.559Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:22:02.561Z DEBUG modem << \x0A
2019-11-29T10:22:02.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:22:12.551Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:22:12.557Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:22:12.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:22:15.304Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:22:22.550Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:22:22.565Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:22:22.567Z DEBUG modem << \x0A
2019-11-29T10:22:22.567Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:22:32.549Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:22:32.564Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:22:32.565Z DEBUG modem << \x0A
2019-11-29T10:22:32.566Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:22:42.550Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:22:42.565Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:22:42.566Z DEBUG modem << \x0A
2019-11-29T10:22:42.568Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:22:52.551Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:22:52.568Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:22:52.569Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:23:02.550Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:23:02.556Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:23:02.558Z DEBUG modem << \x0A
2019-11-29T10:23:02.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:23:12.549Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:23:12.555Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:23:12.558Z DEBUG modem << \x0A
2019-11-29T10:23:12.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:23:22.550Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:23:22.556Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:23:22.558Z DEBUG modem << \x0A
2019-11-29T10:23:22.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:23:32.550Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:23:32.556Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:23:32.558Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:23:38.999Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:23:42.548Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:23:42.563Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:23:42.565Z DEBUG modem << \x0A
2019-11-29T10:23:42.565Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:23:52.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:23:52.562Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:23:52.564Z DEBUG modem << \x0A
2019-11-29T10:23:52.565Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:24:02.548Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:24:02.564Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:24:02.567Z DEBUG modem << \x0A
2019-11-29T10:24:02.569Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:24:12.548Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:24:12.563Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:24:12.564Z DEBUG modem << \x0A
2019-11-29T10:24:12.565Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:24:22.549Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:24:22.556Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:24:22.558Z DEBUG modem << \x0A
2019-11-29T10:24:22.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:24:32.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:24:32.554Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:24:32.556Z DEBUG modem << \x0A
2019-11-29T10:24:32.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:24:42.546Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:24:42.553Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:24:42.555Z DEBUG modem << \x0A
2019-11-29T10:24:42.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:24:52.548Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:24:52.555Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:24:52.557Z DEBUG modem << \x0A
2019-11-29T10:24:52.558Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:25:02.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:25:02.553Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:25:02.555Z DEBUG modem << \x0A
2019-11-29T10:25:02.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:25:02.663Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:25:12.546Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:25:12.561Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:25:12.563Z DEBUG modem << \x0A
2019-11-29T10:25:12.564Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:25:22.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:25:22.561Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:25:22.563Z DEBUG modem << \x0A
2019-11-29T10:25:22.563Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:25:32.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:25:32.560Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:25:32.561Z DEBUG modem << \x0A
2019-11-29T10:25:32.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:25:42.548Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:25:42.563Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:25:42.564Z DEBUG modem << \x0A
2019-11-29T10:25:42.565Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:25:52.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:25:52.553Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:25:52.554Z DEBUG modem << \x0A
2019-11-29T10:25:52.555Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:26:02.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:26:02.552Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:26:02.553Z DEBUG modem << \x0A
2019-11-29T10:26:02.554Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:26:12.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:26:12.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:26:12.553Z DEBUG modem << \x0A
2019-11-29T10:26:12.553Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:26:22.546Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:26:22.552Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:26:22.554Z DEBUG modem << \x0A
2019-11-29T10:26:22.555Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:26:26.325Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:26:32.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:26:32.561Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:26:32.563Z DEBUG modem << \x0A
2019-11-29T10:26:32.563Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:26:42.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:26:42.560Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:26:42.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:26:52.546Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:26:52.560Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:26:52.562Z DEBUG modem << \x0A
2019-11-29T10:26:52.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:27:02.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:27:02.559Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:27:02.562Z DEBUG modem << \x0A
2019-11-29T10:27:02.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:27:12.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:27:12.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:27:12.553Z DEBUG modem << \x0A
2019-11-29T10:27:12.554Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:27:22.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:27:22.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:27:22.552Z DEBUG modem << \x0A
2019-11-29T10:27:22.553Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:27:32.547Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:27:32.553Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:27:32.555Z DEBUG modem << \x0A
2019-11-29T10:27:32.556Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:27:42.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:27:42.552Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:27:42.554Z DEBUG modem << \x0A
2019-11-29T10:27:42.555Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:27:52.544Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:27:52.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:27:52.552Z DEBUG modem << \x0A
2019-11-29T10:27:52.553Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:28:02.545Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:28:02.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:28:02.554Z DEBUG modem << \x0A
2019-11-29T10:28:02.555Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:28:12.544Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:28:12.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:28:12.553Z DEBUG modem << \x0A
2019-11-29T10:28:12.554Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:28:22.543Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:28:22.549Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:28:22.551Z DEBUG modem << \x0A
2019-11-29T10:28:22.551Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:28:32.544Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:28:32.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:28:32.553Z DEBUG modem << \x0A
2019-11-29T10:28:32.554Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:28:36.783Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:28:42.544Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:28:42.559Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:28:42.561Z DEBUG modem << \x0A
2019-11-29T10:28:42.562Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:28:52.543Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:28:52.557Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:28:52.560Z DEBUG modem << \x0A
2019-11-29T10:28:52.560Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:29:02.543Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:29:02.558Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:29:02.559Z DEBUG modem << \x0A
2019-11-29T10:29:02.560Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:29:12.542Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:29:12.557Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:29:12.558Z DEBUG modem << \x0A
2019-11-29T10:29:12.559Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:29:22.543Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:29:22.549Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:29:22.550Z DEBUG modem << \x0A
2019-11-29T10:29:22.551Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:29:32.543Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:29:32.550Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:29:32.551Z DEBUG modem << \x0A
2019-11-29T10:29:32.552Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:29:42.542Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:29:42.547Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:29:42.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:29:52.541Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:29:52.547Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:29:52.548Z DEBUG modem << \x0A
2019-11-29T10:29:52.549Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:30:00.464Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:30:02.541Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:30:02.555Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:30:02.557Z DEBUG modem << \x0A
2019-11-29T10:30:02.558Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:30:12.543Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:30:12.557Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:30:12.559Z DEBUG modem << \x0A
2019-11-29T10:30:12.560Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:30:22.541Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:30:22.555Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:30:22.557Z DEBUG modem << \x0A
2019-11-29T10:30:22.558Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:30:32.542Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:30:32.557Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:30:32.560Z DEBUG modem << \x0A
2019-11-29T10:30:32.561Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:30:42.542Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:30:42.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:30:42.549Z DEBUG modem << \x0A
2019-11-29T10:30:42.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:30:52.540Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:30:52.546Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:30:52.548Z DEBUG modem << \x0A
2019-11-29T10:30:52.549Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:31:02.541Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:31:02.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:31:02.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:31:12.542Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:31:12.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:31:12.549Z DEBUG modem << \x0A
2019-11-29T10:31:12.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:31:22.540Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:31:22.546Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:31:22.547Z DEBUG modem << \x0A
2019-11-29T10:31:22.549Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:31:24.125Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:31:32.540Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:31:32.554Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:31:32.556Z DEBUG modem << \x0A
2019-11-29T10:31:32.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:31:42.540Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:31:42.554Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:31:42.556Z DEBUG modem << \x0A
2019-11-29T10:31:42.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:31:52.539Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:31:52.554Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:31:52.556Z DEBUG modem << \x0A
2019-11-29T10:31:52.556Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:32:02.540Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:32:02.555Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:32:02.557Z DEBUG modem << \x0A
2019-11-29T10:32:02.558Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:32:12.539Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:32:12.546Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:32:12.547Z DEBUG modem << \x0A
2019-11-29T10:32:12.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:32:22.542Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:32:22.556Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:32:22.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:32:32.539Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:32:32.545Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:32:32.547Z DEBUG modem << \x0A
2019-11-29T10:32:32.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:32:42.539Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:32:42.546Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:32:42.548Z DEBUG modem << \x0A
2019-11-29T10:32:42.549Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:32:47.855Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:32:52.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:32:52.552Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:32:52.553Z DEBUG modem << \x0A
2019-11-29T10:32:52.554Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:33:02.538Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:33:02.563Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:33:02.565Z DEBUG modem << \x0A
2019-11-29T10:33:02.566Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:33:12.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:33:12.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:33:12.554Z DEBUG modem << \x0A
2019-11-29T10:33:12.556Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:33:22.538Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:33:22.552Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:33:22.553Z DEBUG modem << OK\x0D\x0A
2019-11-29T10:33:32.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:33:32.543Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:33:32.544Z DEBUG modem << \x0A
2019-11-29T10:33:32.545Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:33:42.538Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:33:42.544Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:33:42.545Z DEBUG modem << \x0A
2019-11-29T10:33:42.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:33:52.538Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:33:52.544Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:33:52.545Z DEBUG modem << \x0A
2019-11-29T10:33:52.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:02.538Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:34:02.545Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:34:02.547Z DEBUG modem << \x0A
2019-11-29T10:34:02.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:12.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:34:12.543Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:34:12.545Z DEBUG modem << \x0A
2019-11-29T10:34:12.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:22.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:34:22.544Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:34:22.545Z DEBUG modem << \x0A
2019-11-29T10:34:22.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:32.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:34:32.543Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:34:32.545Z DEBUG modem << \x0A
2019-11-29T10:34:32.545Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:42.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:34:42.544Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:34:42.545Z DEBUG modem << \x0A
2019-11-29T10:34:42.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:52.536Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:34:52.542Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:34:52.544Z DEBUG modem << \x0A
2019-11-29T10:34:52.544Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:34:58.193Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:35:02.536Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:35:02.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:35:02.553Z DEBUG modem << \x0A
2019-11-29T10:35:02.554Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:35:12.538Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:35:12.554Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:35:12.556Z DEBUG modem << \x0A
2019-11-29T10:35:12.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:35:22.539Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:35:22.554Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:35:22.556Z DEBUG modem << \x0A
2019-11-29T10:35:22.557Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:35:32.535Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:35:32.550Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:35:32.551Z DEBUG modem << \x0A
2019-11-29T10:35:32.552Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:35:42.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:35:42.543Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:35:42.545Z DEBUG modem << \x0A
2019-11-29T10:35:42.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:35:52.536Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:35:52.542Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:35:52.544Z DEBUG modem << \x0A
2019-11-29T10:35:52.545Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:36:02.534Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:36:02.540Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:36:02.542Z DEBUG modem << \x0A
2019-11-29T10:36:02.543Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:36:12.537Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:36:12.543Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:36:12.545Z DEBUG modem << \x0A
2019-11-29T10:36:12.546Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:36:21.851Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:36:22.534Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:36:22.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:36:22.550Z DEBUG modem << \x0A
2019-11-29T10:36:22.551Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:36:32.535Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:36:32.550Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:36:32.551Z DEBUG modem << \x0A
2019-11-29T10:36:32.552Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:36:42.536Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:36:42.551Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:36:42.554Z DEBUG modem << \x0A
2019-11-29T10:36:42.556Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:36:52.534Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:36:52.549Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:36:52.550Z DEBUG modem << \x0A
2019-11-29T10:36:52.551Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:37:02.533Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:37:02.539Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:37:02.541Z DEBUG modem << \x0A
2019-11-29T10:37:02.543Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:37:12.534Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:37:12.540Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D\x0A
2019-11-29T10:37:12.542Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:37:22.534Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:37:22.540Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:37:22.542Z DEBUG modem << \x0A
2019-11-29T10:37:22.542Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:37:32.533Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:37:32.540Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:37:32.542Z DEBUG modem << \x0A
2019-11-29T10:37:32.544Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:37:42.535Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:37:42.541Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:37:42.544Z DEBUG modem << \x0A
2019-11-29T10:37:42.544Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:37:45.518Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:37:52.533Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:37:52.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:37:52.549Z DEBUG modem << \x0A
2019-11-29T10:37:52.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:38:02.533Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:38:02.547Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:38:02.548Z DEBUG modem << \x0A
2019-11-29T10:38:02.549Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:38:12.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:38:12.547Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:38:12.548Z DEBUG modem << \x0A
2019-11-29T10:38:12.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:38:22.533Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:38:22.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:38:22.550Z DEBUG modem << \x0A
2019-11-29T10:38:22.551Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:38:32.534Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:38:32.540Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:38:32.542Z DEBUG modem << \x0A
2019-11-29T10:38:32.543Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:38:42.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:38:42.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:38:42.540Z DEBUG modem << \x0A
2019-11-29T10:38:42.541Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:38:52.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:38:52.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:38:52.540Z DEBUG modem << \x0A
2019-11-29T10:38:52.541Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:39:02.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:39:02.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:39:02.542Z DEBUG modem << \x0A
2019-11-29T10:39:02.544Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:39:09.176Z DEBUG modem << %CESQ: 255,0\x0D\x0A
2019-11-29T10:39:12.533Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:39:12.548Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:39:12.549Z DEBUG modem << \x0A
2019-11-29T10:39:12.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:39:22.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:39:22.547Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:39:22.550Z DEBUG modem << \x0A
2019-11-29T10:39:22.550Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:39:32.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:39:32.547Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:39:32.548Z DEBUG modem << \x0A
2019-11-29T10:39:32.549Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:39:42.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:39:42.545Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:39:42.547Z DEBUG modem << \x0A
2019-11-29T10:39:42.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:39:52.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:39:52.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:39:52.539Z DEBUG modem << \x0A
2019-11-29T10:39:52.540Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:40:02.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:40:02.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:40:02.539Z DEBUG modem << \x0A
2019-11-29T10:40:02.541Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:40:12.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:40:12.537Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:40:12.540Z DEBUG modem << \x0A
2019-11-29T10:40:12.540Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:40:22.532Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:40:22.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:40:22.539Z DEBUG modem << \x0A
2019-11-29T10:40:22.540Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:40:32.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:40:32.538Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:40:32.539Z DEBUG modem << \x0A
2019-11-29T10:40:32.540Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:40:42.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:40:42.537Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:40:42.538Z DEBUG modem << \x0A
2019-11-29T10:40:42.540Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:40:52.530Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:40:52.536Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:40:52.538Z DEBUG modem << \x0A
2019-11-29T10:40:52.538Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:41:02.530Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:41:02.536Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:41:02.538Z DEBUG modem << \x0A
2019-11-29T10:41:02.540Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:41:12.529Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:41:12.536Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:41:12.538Z DEBUG modem << \x0A
2019-11-29T10:41:12.539Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:41:19.485Z DEBUG modem << %CESQ: 255,0\x0D
2019-11-29T10:41:22.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:41:22.545Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:41:22.547Z DEBUG modem << \x0A
2019-11-29T10:41:22.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:41:32.529Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:41:32.544Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:41:32.547Z DEBUG modem << \x0A
2019-11-29T10:41:32.548Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:41:42.531Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:41:42.546Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:41:42.550Z DEBUG modem << \x0A
2019-11-29T10:41:42.551Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:41:52.529Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:41:52.544Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:41:52.546Z DEBUG modem << \x0A
2019-11-29T10:41:52.547Z DEBUG modem << OK\x0D\x0A\x00
2019-11-29T10:42:02.529Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-11-29T10:42:02.536Z DEBUG modem << +CESQ: 99,99,255,255,255,255\x0D
2019-11-29T10:42:02.538Z DEBUG modem << \x0A
2019-11-29T10:42:02.539Z DEBUG modem << OK\x0D\x0A\x00

 

Øyvind said:

While AT+CPIN? == READY, which is correct, and indicates no pin required. 

 Shouldn't the SIM pin be set to the one found on the flyer it came with? (in my case that's 0000)

Trying to set it via AT+CPIN="0000" results in ERROR message being displayed. 

[Øyvind]

Ok, so your output indicates that it does not find a network:

CESQ: 99,99,255,255,255,255.
All values mean Not known or not detectable

I suggest asking the local LTE-M provider directly regarding LTE-M coverage. I.e. try with their SIM.