This is really annoying. Microsoft needs to grow up and fix such silly issues. I already have a developer unlocked device in which I was able to debug until now. All of sudden it started showing device is not unlocked for developer. Now when I am trying to register it is showing iPOverUsbSvc is not running. I restarted the service. Stop and start the service. Phone and system both restarted. Nothing working for me.
I tried this but nothing seems to be working