BG77 not working with any SIM

IoT Modules LPWA Module
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1

Hi. I purchase a Quectel BG77 which comes on a small board RAK5860. The module respond to AT comands but fail to register on the network. The SIM works on a phone and another m.2 laptop module. The small board comes with a USB which can be connected to a PC after driver are installed. A new WWAN network shows, but always without service on windows 11.

Any suggestion or AT-command to start solving the problem?

2

Hi @Enrique_Carrasco

BG77 supports CATM & NBIOT network only, so does your current SIM support these 2 RAT? Probably you need check with SIM provider.