RM502Q-AE "factory test"

IoT Modules 5G Module
1

I’ve tried dozens of QMI, MBIM, and AT commands, and have had no luck. My RM502Q-AE says it’s in “factory_test” mode
uqmi -d /dev/cdc-wdm0 --get-device-operating-mode
“factory_test”

Even after flashing firmware, still in “factory_test” mode.

Any help?
TIA

2

hi @bsd，with my local test, I have reproduced what you said, but there is no “Even after flashing firmware, still in “factory_test” mode.” You said, you can exit “factory_test” mode through the AT command AT+QFTMMODE=0." (0- online 1-factory_test), can you provide the corresponding execution results

3

This has been resolved. I bought a used unit, and apparently the former owner updated the firmware via qfirehose -e, erasing calibration data.
A Quectel support technician helped me replace the missing xqcn file.
Incredibly happy with Quectel support. As far as this forum goes? I’m afraid it’s too little, too late.

4

Hi. How were you able to get hold of a Quectel support technician? Thanks!

5

Simply followed the link on their web page for support.

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