HI We have a unit of 100 MC7421 devices and we suffer from their bad behavior, most of the time when the board restarts or turns on/off the module will disappear or the qmi command fails to complete the transaction and we have to restart the board a lot of time to make it work we tried the MBPL_DR…

Do you have a doc that describe the upgrade procedures and can I use openwrt to upgrade it or only linux /windows os because we have many routers already installed and we can’t unplug the module again

I have never used openwrt, but you can have a look on here: [image] Updating EM7565 on openwrt MC/EM Series hey @LateParrot the debug logs is good, but I’m afraid it doesn’t tell much smiley Your log shows how when you open the ttyUSB0, there is no data received in the pr…

I tried to use airvantage fota to upgrade the firmware but I can’t see the MC7421 in drop list devices you know how to add it or it’s not yet supported ???

how about " Register AirPrime EM75 series"

I didn’t understand you mean I should register MC7421 as EM75 model??? on the other hand I used the command line to upgrade the firmware to Generic / SWI9X50C_01.14.13.00 /002.048_000 root@test201:~# atexecute ttyUSB2 “AT+GMR” AT+GMR SWI9X50C_01.14.13.00 883709 jenkins 2022/01/05 07:08:35 O…

I got the issue I used generic instead of GENERIC now it works and below list of command for who want to upgrade with openwrt qmicli -d /dev/cdc-wdm0 -p --dms-set-firmware-preference=“firmware-version=01.14.13.00,config-version=002.048_000,carrier=GENERIC” AT!BOOTHOLD (wait for /dev/cdc-wdm0 to …

hello jyijyi, I upgraded the firmware as you said root@test201:/dev# atexecute ttyUSB2 “ATI” ATI Manufacturer: Sierra Wireless, Incorporated Model: MC7421 Revision: SWI9X50C_01.14.13.00 883709 jenkins 2022/01/05 07:08:35 IMEI: 357339340309005 IMEI SV: 14 FSN: 912154221404B1 +GCAP: +CGSM r…

how to reproduce the crash? BTW, you need to type AT!GCCLR to clear the AT!GCDUMP information before the stress test. Do you see problem if no SIM card is inserted?

I wrote a script that reboots the board every 5 minutes yes the cache was cleared before reboot Do you see problem if no SIM card is inserted? I will check that FYI : I did this test with NL668 from Fibocom and the module works well all the time the mother board is DR40x9 from wallystech op…

MC7421 QmiDevice: Transaction timed out

IoT Modules MC/EM Series

rachid.labidi June 12, 2023, 1:42pm 19

I use Hardware reset pin 22, because with serial interface doesn’t work in some cases

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MC7421 QmiDevice: Transaction timed out

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