@Jonas.Ding-Q,
I believe that is the firmware, look at the Android’s version:
I’m using the firmware “SC20AULSAR09” from FTP. Could you, please, send me the correct Linux firmware version?
@Ricardo_Aguiar
I think you need to burn factory firmware first, but you can not get the IMEI correctly. You can contact the third-part hardware and contact our Quctel FAE or sale manager for help you. I couldn’t share you the factory firmware to you.