"they said it's either software or hardware"
So long as the money stream isn't broken, they won't care...
T-Mobile users with iPhones are being beset by a mysterious issue that causes their handsets to randomly flash a blue screen and then reset itself. Multiple users are reporting that their Apple handsets have been flashing the blue screen before going black and restarting without warning. T-Mobile has yet to respond to a …
Interesting problem, this.
If it leads to the death of the carrier specific phone mod I'll be very happy, because over the years I have yet to see a benefit of that rubbish.
Maybe it's a secret ploy to win over Windows users? Make them feel at home?
By the way, it appear the cause has been found: https://discussions.apple.com/thread/6633452?start=45&tstart=0 - from that article, it appears to be indeed a carrier specific update. Apple is probably helping T-Mobile to find out where they screwed up..