We turn an old netbook into a tablet that calls on a SIM card
Used old devices:
Old netbook noname
Power connector from an old Acer laptop
Memory card from a not quite old Lenovo laptop
USB connector from an old power supply
Old USB modem 3g Huawei E3131 from Beeline
Future plans
Next, you have to test the operation of programs for Windows 10, designed for Windows 10
add usb hub
and power to the modem
improve cooling
return the lan board and power connector differently
consider the option with a module and a slot for a sim card