The mainboard has an unpopulated pins for a SIM card reader:
But lacks the 4G Modem.. The Quactel EG25-G was recommended as an open-source alternative as it's fully reverse-engineered and addresses the issue with staging drivers for the wifi/ble + implements GPS
The mainboard has an unpopulated pins for a SIM card reader:

But lacks the 4G Modem.. The Quactel EG25-G was recommended as an open-source alternative as it's fully reverse-engineered and addresses the issue with staging drivers for the wifi/ble + implements GPS

https://github.com/Biktorgj/quectel_lk
https://www.aliexpress.us/item/10000111530554.html?gatewayAdapt=glo2usa
Plan of action: Adjust the IO board
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The mainboard has an unpopulated pins for a SIM card reader:
But lacks the 4G Modem.. The Quactel EG25-G was recommended as an open-source alternative as it's fully reverse-engineered and addresses the issue with staging drivers for the wifi/ble + implements GPS
https://github.com/Biktorgj/quectel_lk
https://www.aliexpress.us/item/10000111530554.html?gatewayAdapt=glo2usa
Plan of action: Adjust the IO board