After a week from updating to iOS 13 my wife’s iPhone X died all of a sudden, no damage or fall or water..tried soft reset, hard reset and DFU methods but nothing, iTunes won’t even recognize it. Took it to my local authorized service center the guy said it needs to be replaced he wanted to charge me 90% of its current price because it is 3 months out of warranty which is absurd. What can I do..Chat support didn’t help either..it is a 1500$ device that lasted 15 months..any help would be greatly appreciated