lost signal after a second.
I have a problem I can not figure out how to solve. When I turn on the smartphone takes the signal for 1 second and then appear the notification "restricted access changed" and the signal is not working more , I tried to set only 2g , 3g only , but nothing seems to work. I tried to make updates and wipe but nothing , how can I understand the problem ?
Is dit een goede vraag?