Phone disconnects after validating sim card
The smartphone works fine when without the Sim card.
After inserting the Sim card, issuing the Pin code, the phone accepts the pin and then shuts off.
Tried with other Sim cards, same result.
Reseted to factory defaults, same result.
Looks like a gsm network ploblem. There is always the X red in the network top indicator.
Appreciate some help.