RE: nRF9160 modem firmware update fails

Bjørn Kvaale — Wed, 03 Apr 2019 08:54:01 GMT

I agree with MJD093. As long as you run nrf9160_mdm_dfu --update inside the unzipped zip file, it should work fine. Make sure that the:

ZZzzZZzz.ipc_dfu.signed.ihex

firmware.update.image.hex

firmware.update.image.digest.txt

files are present & that this is the location you are running the modem FW update.

RE: nRF9160 modem firmware update fails

MJD093 — Mon, 01 Apr 2019 09:21:17 GMT

Not entirely sure why you have added the firmware path to the command. The command should be run from inside the firmware's directory and, from the read me that came with the FW, you should only need "nrf9160_mdm_dfu --update"

I ran that command 2 months ago, as well as a few weeks back on another DK, and it updated without issue when done as mentioned above. As long as the dfu tools have been installed, it should just update the modem by itself.

EDIT: Ah, as for why it's erroring out. Went back over the read me, you need 3 files. You only specified one of the 3 required files that --update will auto pull (I guess) from the directory.