iPhone XS Max signal issue with ATT
After I upgraded my iPhone to 13.6, I started notice my phone signal bars are always just showing one bar. When I made a phone call or received one, the reception quality was really bad, sometimes the call would drop suddenly. I tried few methods, restarting the phone, resetting network settings, toggle the cellular data/enable LTE/plane mode, none of them worked. Does anyone have the same issue? Is there any fix for it? Or anyway to boost the reception? Thanks in advance.
iPhone XS Max
