BPI-R4 supports M.2 USB Interface 4G LTE/5G Modules If you want to use M.2 Cellular Module on BPI-R4:
- Install 4G/5G Cellular Module into mPCIe Slot(M.2 KEYB)
- Inset NANOSIM Card into SIMSlot(SIM1) with card tray(pay attention to the direction)
- Install antenna on the module
- After powering on, it will automatically dial
If you can successfully ping a website after entering the following commands, it indicates that communication is successful.