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John CO Author

Level 1

5 points

VO2max not working on WatchOS8

Once again, Apple Watch VO2 Max stops working for no apparent reason. Unpair and pair yet again?

Apple Watch Series 6

Posted on Mar 2, 2022 5:21 PM

Top-ranking reply

javaliga

Level 10

119,869 points

Posted on Mar 2, 2022 6:03 PM

The first (and simplest) thing to try if something isn’t working right is to restart your Apple Watch and its paired iPhone. If necessary (device not responding), try a forced restart. Both methods can be found here:

How to restart your Apple Watch - Apple Support

Restart your iPhone - Apple Support

If that doesn't help, the next steps would be to unpair and pair your watch again and restore from the backup just created. This should result in no loss of data. It deletes all temp and corrupted files and re-indexes the file system.

Unpair and erase your Apple Watch - Apple Support

Set up your Apple Watch - Apple Support

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VO2max not working on WatchOS8

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