Robjak reminded me to ALWAYS do a hard reboot after any update. Not only on your phone but watch and laptop, too! My iPad had been rebooted as I turn it off between uses, where my iPhone stays on 24/7.
Calibrating the compass should do the trick. Whenever I use the compass, I move my phone around so I can be sure it's calibrated/locked in. I've never had to restart or do a hard reset to fix incorrect readings.
Calibrating the compass should do the trick. Whenever I use the compass, I move my phone around so I can be sure it's calibrated/locked in. I've never had to restart or do a hard reset to fix incorrect readings.