+5 votes
90 views
by (3.1k points)
iTunes - Unknown Error 21

1 Answer

+5 votes
by

  • On Mac Navigate to ~ / Library / iTunes /. In the Finder you can choose Go> Go to Folder. Type or paste the path name above and click OK. - Delete all files in the iPhone Software Updates directory and Device Support. - Try to restore the iPhone again.

 

In Windows, these files are located in a hidden folder. To view these files in Windows Explorer, you select Tools> Folder Options, click View and then select "Show hidden files and folders". 

 

  • In Windows Vista, follow the instructions below: - Choose Start> Computer> Local disk and enter the following path: C: / users / [yourusername] / AppData / Roaming / Apple Computer / iTunes / - Delete all files in the iPhone Software Updates folder and Device Support. - Try to restore the iPhone again.
  • In Windows XP, follow the instructions below: - Choose Start> Run, and type C: / documents and settings / [yourusername] / Application Data / Apple Computer / iTunes / - Delete all files in the iPhone Software Updates directory and Device Support in.
  • If, despite these recommendations, you still have this error, verify that you have the latest version of iTunes.
  • Try using a USB Hub.

6.5k questions

8.2k answers

191 comments

71 users

Please leave a comment if the solution works or not.
(with device model) [X]Close
Ask a Question
Welcome to Wikiwhy Q&A, where you can ask questions and receive answers from other members of the community.

Categories

...