Banana Pi BPI-R4 4G/5G Module sim card missing in modem manager

Banana Pi Router design BPI-R4/BPI-R4 Pro(MT7988)
41

RM520NGLAP working in BPI-R4 but it required to disable sim pin detection with at command. For reboot issue still no solution.

42

Alright, with qmbitat I was able to play around with AT commands (to change SIM state and to reset the card) and it needed to be explicitly enabled in modemmanager (nmcli -m any -e). However now I have an mhi_hwip0 that has sane IP addresses from my provider but Iā€™m sending data to it but there arenā€™t any responses (no matter if v4 or v6). Did others see that as well? O_o

44

Care to share that AT command? I canā€™t find it in https://drive.google.com/file/d/1QMJMD6WiQ3PaAgM5gXbQfp7DlRhA9j2N/view Thanx.

45

Please detail how to determine if a specific pin is missing? I have a multi-meterā€¦ TIA.