in my case this seems to be a software issue (iphone xs max 256gb)
I get a pretty good reception at open places (usually connected to band 7) but a poor reception inside buildings
early this morning in the office I've noticed poor reception and the phone was connected to band 7, I've restarted the phone and instantly got significant better reception ... but connected to band 3 now. After a minute phone switched back to band 7 and poor reception was back. it seems the phone doesn't lock on the best antenna/band possible.
speed tests:
band 7 prior to restart - terrible
band 3 after restart - perfect
band 7 a minute after restart - terrible
I get a pretty good reception at open places (usually connected to band 7) but a poor reception inside buildings
early this morning in the office I've noticed poor reception and the phone was connected to band 7, I've restarted the phone and instantly got significant better reception ... but connected to band 3 now. After a minute phone switched back to band 7 and poor reception was back. it seems the phone doesn't lock on the best antenna/band possible.
speed tests:
band 7 prior to restart - terrible
band 3 after restart - perfect
band 7 a minute after restart - terrible