Updating nrf9160 modem firmware through the command line

Question

We are producing a batch of nrf9160 based devices and will need to upgrade the modem firmware, this will be much easier if we could do this through the command but I saw on modem firmware version 1.0.0 and after, you no longer provide a flashing tool and recommend nRF Programmer. 
 Can the old nrf9160_mdm_dfu be used with the newer modem firmware or how would you recommend upgrading modems through the command line?

Sigurd · Accepted Answer

Hi, 
 RonanB96 said: is there a way to add some debug information during the flashing and verifying? 
 Yes. 
 Take look at this file. Logging level is set to INFO here. 
 #!/usr/bin/env python3
#
# Copyright (c) 2019 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-BSD-5-Clause-Nordic

import os
import time
import argparse
import subprocess
import logging
from tempfile import TemporaryDirectory, mkstemp
from pynrfjprog import HighLevel

logging.basicConfig(level=logging.INFO)
log = logging.getLogger('modem_update')


def flash_modem_pkg(modem_zip, verify):
 start = time.time()
 with HighLevel.API(True) as api:
 snr = api.get_connected_probes()
 for s in snr:
 log.info("Establish board connection")
 log.info(f"Flashing '{modem_zip}' to board {s}")
 with HighLevel.IPCDFUProbe(api, s, HighLevel.CoProcessor.CP_MODEM) as probe:
 log.info(f"Programming '{modem_zip}'")
 probe.program(modem_zip)
 log.info("Programming complete")
 if verify:
 log.info("Verifying")
 probe.verify(modem_zip)
 log.info("Verifying complete")
 api.close()
 log.info(f"Completed in {time.time() - start} seconds")

def main():
 parser = argparse.ArgumentParser()
 parser.add_argument("modem_pkg")
 args = parser.parse_args()
 log.info("Modem firmware upgrade")
 flash_modem_pkg(args.modem_pkg,True)

if __name__ == '__main__':
 main() 
 (Using f-Strings(introduced in python 3.6))

Sigurd · Answer

RonanB96 said: like in the nRF Connect Programmer when it gives the progress of the flashing and verifying 
 Yes, this is what INFO logging does. 
 Here is how the output from the script looks like:

Updating nrf9160 modem firmware through the command line

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