IOS 15.5 LOW CELLULAR SIGNAL
Hi i have amano iPhone 12 pro max and after update to ios 15.5 My cellular signal is low and sometime go to search mode or no signal how can i fix it ?(i tried to re-install throw dfu mode iOS ,hard reset,switch connection ,change carrier and SIM card etc ).
I have already sent the iphone for assistance 3 times but they never knew how to solve the problem
iPhone 12 Pro Max