* Quit all apps from the background. Especially the Compass.
* Open the Compass app. The iPhone will ask you to recalibrate by having the red dot complete a circle.
* Once the calibration is done, you’ll see the compass. That means the recalibration is over.
You can test the recalibration by heading over to the app that seemed quirky with the data.
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Another possible problem would be caused if you did any repairs previously on it or bought this used/refurbished from someone who had. There's a screw that isn't magnetic by design, but is often magnetized inadvertently or intentionally during a repair (after someone loses it). Try checking that screw.
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Another possible problem would be caused if you did any repairs previously on it or bought this used/refurbished from someone who had. There's a screw that isn't magnetic by design, but is often magnetized inadvertently or intentionally during a repair (after someone loses it). Try checking that screw. It's circled in green in the below link.
Try the following:
* Quit all apps from the background. Especially the Compass.
* Open the Compass app. The iPhone will ask you to recalibrate by having the red dot complete a circle.
* Once the calibration is done, you’ll see the compass. That means the recalibration is over.
You can test the recalibration by heading over to the app that seemed quirky with the data.
Another possible problem would be caused if you did any repairs previously on it or bought this used/refurbished from someone who had. There's a screw that isn't magnetic by design, but is often magnetized inadvertently or intentionally during a repair (after someone loses it). Try checking that screw.
[guide|30962|stepid=52984]
Good luck!