Hello,
Today I was about to update EM12-G firmware from EM12GPAR01A18M4G to EM12GPAR01A20M4G using USB 3.0 adapter and Qflash V4.20 on a Windows 10 PC with latest Quectel LTE/5G drivers.
I followed the instructions in Quectel_Qflash_user_guide_3.3 A.pdf setting up the DM COM port.
When I press the start button, Qflash tries to communicate with the COM port, it seems ok, after a couple of seconds Qflash tries to open a “virtual port” and the device disconnects; 60 second countdown but no virtual ports were found.
Could it be that firmware upgrade via USB 3.0 for EM12-G is not supported?
thanks
Grazino