Firmware Update OTA of nRF9160 by BLE nRF52840, , , , and update nRF52840 by FOTA of nRF9160 ?

[MAhmed106]

Hi Nordic

We are working on nRF9160 DK for our LTE+GPS product development. 

We are looking for FOTA and BLE OTA Update for our board.

Is it possible to do FOTA update for nRF52840 and do BLE OTA update for nRF9160 ? 

As i couldnt find this feature in documentation and devzone queries. 

Thanks waiting for your reply.

[Simon]

Update 52840 over LTE 

1. Check out the following patch: https://github.com/nrfconnect/sdk-nrf/compare/v1.4.0...plskeggs:feature-uart-dfu-v1.4.0 
   • It demonstrates how to update the firmware of the nRF52840 in the following manner: cloud --LTE--> nRF9160  --UART--> nRF52840
   • This solution is based on NCS v1.4.0, so probably need to do some porting to make it work with NCS v1.6.0. Please tell me if you are struggling.

Update nRF9160 over BLE

1. If you have access to a computer when doing the update you can use the following approach: https://devzone.nordicsemi.com/f/nordic-q-a/59186/nrf91-firmware-upgrade-over-ble/240806#240806
2. If you have the BLE Host on the nRF9160 and the BLE controller on the 52840, with UART communcation between them (like the BLE Gateway sample) you can simply use the following approach: https://devzone.nordicsemi.com/f/nordic-q-a/69368/nrf5340-fota-system-reset-after-pairing/286031#286031

If none of the above solutions works for you please inform me and I will tell you how to go about it then.

Best regards,

Simon