Updated my iPhoneX to iOS 14.2 overnight... it's completely killed my cellular/data usage.. no idea what to do? Faults, glitches & crashing in many other areas of phone also. Have tried literally every single 'hack' shown online including all the way to a hard reset and complete restore ect... nothing working whatsoever. Had basically a brick of a phone for 2 days now!! Super rarely I'll get cellular for a few minutes before it disappears. What's going on apple? Bring back iOS 13 please or bring a fix. This is actually ridiculous.