I need help on how to fix my Nokia Lumia 920.,I have updated it to 8.1 Dev Preview. It was working fine about a month then the screen intermittently stopped responding. I tried to restore it to factory settings when it would work fine but to no avail, the issue was still persistent. I decided to use the Nokia Software Recovery tool to go back to Lumia Black thinking that it was because of the OS (8.1 Dev Preview) not being compatible yet but to no avail, became worse. My device does not totally respond. It's on the Get Started screen and won't respond (the screen). PLEASE HELP!!!
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