Asset Tracker V2

[John]

I'm trying to build the Asset Tracker V2

The following link is 404

https://github.com/NordicSemiconductor/asset-tracker-cloud-docs/releases/download/v5.9.2/91dk_at_client_increased_buf.hex

I'm making the assumption after reading the documentation that the device (nrf9160) needs to be in a certain state to be able to write the certificates (Modem off), hence the need to program it using the above link.

Please correct me if I'm wrong.

In addition I won't be using a DK, I'm trying to use our own hardware using an nrf9160.

I'd be grateful if you would guide me through the process of creating certificates using this scenario please and also writing them to the device.

Do we still use link monitor or is there a better way?

Thanks in anticipation of your help.

[KevinA]

"Further to my previous concerns."

I use my DK to program external nrf9160 devices, you just have to remember to power the external device before switching the DK on, the nrf52840 detects and switchs the debug ports.

[Marte Myrvold]

Hi,

nrfjprog -e is the command to erase all program flash memory and the UICR page. If you have not programmed an application or sample to the devices after using this command, they will not do anything, as there will not be any application on them. The command should not cause any problems to your devices, so you should be able to program them and use them as before again. You can find more information about nrfjprog commands here. If using this command caused any other problem than just erasing the program, then please let me know. You should also know that using this command will not delete the modem firmware or anything stored in the modem flash, so you do not have to program the modem firmware again after using this command.

As for your problem when using a DK to program your nRF9160 device and getting the IMEI of the DK instead of the device, could you please try the solution proposed by KevinA and report back whether that solved the issue or not?

KevinA said:

I use my DK to program external nrf9160 devices, you just have to remember to power the external device before switching the DK on, the nrf52840 detects and switchs the debug ports.

 Best regards,

Marte