GPS on the Thingy91

[Will Lizardo]

Hi,

I am trying to get the GPS from my thingy91, but it is not working. I can see that the board has CAT-M1 connection when I press the top button to get the GPS signal (therefore the main LED starts to blink purple), the Link Monitor shows that the board is trying to get GPS data, but it is not showing on the NRF Cloud.

I have tried with two different SIM Cards (iBASIS and local Vodafone) because I have heard that the PSM mode was not working on roaming sims, but it is still not working. Also, I have tried with an external antenna, but it did not work either. Any tips?

[Will Lizardo]

Hi Bjorn,

UPDATE:

How can I turn off the Context 0 on the Thingy:91 FW?

I spoke with our local technical support from Vodafone, and he reinforced that I need to get the connection through the APN iot, not through Vodafone, but if I send the AT+CGACT=0,0 the application reboots.

I have managed to change the FW on the Thingy as well, so I have updated the 9160 FW and played with the AT Commands one.

[Bjørn Kvaale]

Very sorry for the delayed response. I wonder if something is wrong with the CGDCONT command. When I connected to Vodafone in England, I was told to run this command:

AT+CGDCONT=0,"IP","nb.inetd.gdsp"

It may be the same as the command you are running, but this could be worth a try. Otherwise, I would recommend taking a modem trace & then sending it to me. I'll let the Finland team know & we can take it from there.

[Terje K Wahl]

Hi. Did you discover how to turn off Context 0? I have a similar problem with trying to deactivate context 0 and activating context 1, but trying e.g. "AT+CGACT=0,0" or "AT+CGACT=1,1" returns "ERROR".

[Bjørn Kvaale]

Did you remember to use the CGDCONT command first, like mentioned in our at commands pdf:

[Terje K Wahl]

TL;DR: Both create CID 1 and connect to network before you can activate the new context and deactivate context 0.

I have now solved my problem. If anyone would like to know the details they are in this thread:

https://devzone.nordicsemi.com/f/nordic-q-a/53364/unable-to-change-apn

[Bjørn Kvaale]

Great! Good to know. Thank you for the detailed response!