Modem reset in mPLS62-w?

[Aleksander Morgado]

Hey Giacinto,

On an Intel-based mPLS62-w Cinterion module (0x1E2D:0x005D), running
XMM7160_V1.1_MBIM_NAND_ADAPT_R, how can we trigger a modem reset
successfully?

We've tried to use the "Intel Firmware Update" MBIM service and run
the "Modem Reboot" command, but it's either failing with "Failure" or
the request just times out.

[05 Jul 2021, 11:22:21] [Debug] [/dev/cdc-wdm0] Received message (translated)...
>>>>>> Header:
>>>>>>   length      = 48
>>>>>>   type        = command-done (0x80000003)
>>>>>>   transaction = 24
>>>>>> Fragment header:
>>>>>>   total   = 1
>>>>>>   current = 0
>>>>>> Contents:
>>>>>>   status error = 'Failure' (0x00000002)
>>>>>>   service      = 'intel-firmware-update' (0ed374cb-f835-4474-bc11-3b3fd76f5641)
>>>>>>   cid          = 'modem-reboot' (0x00000001)

On the equivalent Sierra Wireless modules with the same kind of XMM
chipset, the same operation succeeds and the module reboots
successfully; but looks like this is not happening here.

So what's the best way to request the reset in the mPLS62w?

Cheers!

-- 
Aleksander
https://aleksander.es