iOS devices are experiencing module calibration issues. The new update (with fix) will hit the App Store in week 38. Apologies for the inconvenience. 

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E-Track&Trace

Maintenance

In principle, you do not have to do anything. The only thing that is important is to make sure your system is up to date.

Updating systeem

It is important to check regularly for software updates. More information can be found on the Updating page.