Always "No Service" after working for several hours
The phone otherwise works fine, has not been dropped or damaged, and has not been opened. Consistently, after working for a couple of hours, I lose the network signal and get a “No Service” message. I have replaced the SIM card, ensured the SIM card tray is straight, cleaned the SIM card receiver, confirmed that the IMEI is displayed (suggesting the baseband IC is okay), performed a hard reset, and performed repeated network resets (yes, probably redundant to the hard reset). The thing that is crazy-making is that it works, and then only after a couple of hours does it lose the network — and this is regardless of whether the phone is in use or not in use, so it is not a question of heat causing a light solder fracture to separate. ANY IDEAS?
Bu iyi bir soru mu?