Solutions for iPhone Restore Error 21 2019 Guide

Solutions for iPhone Restore Error 21

Here are some solutions that have been proved useful by many iPhone users.


1. Check iTunes


2. Check Third-party Security Software


3. Solve iPhone Restore Error 21 without Data Loss
1 Check iTunes

First of all, please check your iTunes and make sure there is no problem with the iTunes software.

Restart iTunes

This one is the best possible solution in the case of iPhone restore error 21. This will enable you to reset everything and return back the things to normal. This solution will also ensure if there’s short-term fault or malfunction and will assist if any. On the other hand, if the problem is a big one, restarting iTunes will prove futile. You need to try other solutions in this case. Also, take care of the computer, USB cable and network. Detach the not needed USB devices like other Smartphone particularly or storage devices.

Update iTunes

There’s a big requirement to update iTunes specifically when your iPhone has latest iOS and iTunes. Don’t procrastinate the process and start updating your iTunes to avoid these kinds of errors. Getting the latest version of iTunes may help you to fix the iPhone restore error 21.






2 Check Third-party Security Software

Sometimes, security softwares for example anti-virus can interrupt the connection during updating process through iTunes. In this case, you should check your third-party security software and make sure to disable it for a while.Sponsor ads:

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3 Solve iPhone Restore Error 21 without Data Loss