I bought Nokia Lumia 520, Windows 8 OS phone on May 24th. Within a week, i got an issue. If i keep my phone idle for some 10 minutes, i can't unlock the screen. I need to do a force restart by removing battery. If i won't do force restart, phone itself restarting randomly. I have done a factory reset as well, but it didn't resolve my problem. I given it to Nokia care for service, once they updated the software, next time they sent my mobile to the factory to find and fix the issue. When i got mobile back, the issue starts again within a day.
Has anyone faced this kind of issue in other Windows 8 OS Phones like HTC or Nokia?