Hi Nordic support:
Our product used nRF9151 modem. During production, we encountered an issue with approximately 0.1% probability on the nRF9151: It's firmware lost or corruption after firmware downloaded and before nRF9151 testing. After re-download nRF9151 firmware, nRF9151 functions normally.
We used following 4 nrfjprog commands to download firmware, verified each command executed successfully, then powered off nRF9151. Could you help us to check if there is any problem with our firmware download procedure?
nrfjprog.exe --recover -f nRF91
nrfjprog.exe --eraseall -f NRF91
nrfjprog.exe -f NRF91 --program mfw_nrf91x1_2.0.3.zip --verify
nrfjprog.exe -f NRF91 --program app.hex --verify
nrfjprog.exe --eraseall -f NRF91
nrfjprog.exe -f NRF91 --program mfw_nrf91x1_2.0.3.zip --verify
nrfjprog.exe -f NRF91 --program app.hex --verify
In addition, could you share us some advice on how to avoid nRF9151 firmware lost or corruption?
Thanks!
BRs
Qin, Rong-Lin
