Here is tips how to repair nokia 3110c restart when plug memory card or when run menu.
1. Turn off your nokia cellphone, then turn on without memory card
2. If the problem solved, format memory card with computer or cellphone
3. If the problem not solved, check power switch, replace power switch if needed
4. If the problem not solved, set your cellphone to factory default setting
5. If the problem not solved, upgrade software, reflash the cellphone ( updating firmware need repair tool box, example = JAF, UFS3, other)
6. If the problem not solved, check Flash IC, resolder flash, replace flash IC if needed.
7. Replacing Flash IC need rebuilt imei and tuning Energy Management.
