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![8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]](https://www.fonedog.com/images/ios/fix-system/fix-iphone-error-21jpg.jpg "8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]")
8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]
![8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]](https://www.fonedog.com/images/ios/deleted-data/itunes.jpg "8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]")
8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]
![8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]](https://www.fonedog.com/imgs/article/ios-system-recovery.png "8 Ways to Repair iTunes Error 21 or iPhone Error 21 [2023]")