[AC Question]

I was updating my HTC one google play edition and got a error message (android bot died). I managed to restart my phone and now my dialer and messenger are not working. It takes a long time to launch the dialer and making a call also takes a long time (10-20s). When it is finally dialing, I hear no dial tone or ringing. When I hang up, it gets stuck on the Hanging up screen for a long time, up to a minute sometimes. When I received a call and answer, I can't hear anything.

The messenger is also wrecked. Launching the messenger just closes it almost instantly. I tried a factory reset and the problem persist. I can't even make a phone call. I search through the net and found some similar problems back in Dec 2014 but I have no idea how to fix this one. There are other weird things after the update; sometimes I will get utterly no signal from T-mobile in places I know I have LTE. Sometimes restarting or switching the mobile on/off will get me back on the LTE.