Did you get yours fixed by mobile tech vids.com? I just got mine back from them after a month and my phone is revived but can't use it because it won't except any unlock code. I tried to buy one the guy said it was a premier code and was gong to cost me 30 bucks or so.
Is your serial number the same and imei the same? (Same as when u sent it in for repair?) Mine are different than they were and I think I can fix it myself .
I will let you know if anything happens on my end
Sent from my HTC One using xda app-developers app