My nrf9160 which has the v1.0.0 modem and using v1.0.0 sdk has suddenly started continuouly resetting .

[Julia]

My nrf9160 which has the v1.0.0 modem and using v1.0.0 sdk has suddenly started continuouly resetting when i try to run asset tracker application.  I have tried at-command sample also and that gives an assertion Fail with bsdlib irrecoverable error: 3. I seem unable to program it with anything that works. I have programmed with programmer tool and from the command line using west. Any sugestions?

[Hung Bui]

Hi, 

Regarding the issue with the nRF9160 modem firmware. We have an early release version that you can use to recover the modem. Please be aware that this is an unofficial release and will not be supported (for FOTA) in the future so it should not be used in a production device.

Please follow the instruction and make sure you updated the nrfjprog to v10.3.0 or later. 

1) Flash the fix image (please don't unzip the file, just select the .zip). The instruction is here.

2) Boot up

3) Flash back modem firmware v1.0.0 

4) Reprogram certificates as instructed here.

I will send the fix image via PM to each of you. If anyone has the same problem, please leave a comment here or contact us. 

[Hoang]

hungbui2

I am confusing about: 

step 1:  Flash the fix image (please don't unzip the file, just select the .zip). The instruction is here. 

step3: Flash back modem firmware v1.0.0 

what are the differences between st.1 and st.3

Thanks

Regards

Hoang Nguyen

 

[Carl Richard]

I think I can clearify. If you read Hung Bui's response you see that he mentions a "Fix image". This is a Modem Firmware image provided to fix the issues with the modem. 

Step 1. is to flash this "fix image" onto the modem, just as you would do with a normal modem firmware update. This will fix the modem, but it's not a working modem firmware. That's why you have to perform "Step 3.".

Step 3. is to flash the v1.0.0 modem firmware again, so that the modem will be operational. 

If you need the "fix image" inquire a Nordic Employee. 

All the best,
Carl

[Hoang]

Thanks so much, Carl Richard

[Carl Richard]

My pleasure!

[brendanyounger]

I am having this same issue.  No matter what application I try to flash onto my DK, I get

ASSERTION FAIL [0] @ ../src/main.c:23
***** Kernel Panic! *****
Current thread ID = 0x20021a80
Faulting instruction address = 0x217c8

Re-flashing the modem firmware to v1.0.0 does not help.

Can I please get the fix image?