My iPhone 7 is too buggy since I upgraded it to the iOS 11 beta. Now the iOS 11 had finally been released for a while, but my iPhone, even after upgraded to the official release, still too buggy (while using an app, the screen suddently got freezed and it is not responsive for a few minutes; an app didn't launch sometimes and crash immediately; etc...).

I already cleaned all my data and settings, and restored it from my backup, but it didn't resolve the issue.

So I would rather like to clean-install it. Is it possible to do that in iPhone?

  • @ReneLarsen I already restored but it still got freezed. So I want to clean install it. – Blaszard Oct 14 '17 at 21:05
  • A restore without applying a backup afterwards is a clean install - and the same applies if you download an .ipsw file first and then use this file to do the restore (the automatic restore from iTunes also download the same .ipsw file) – Rene Larsen Oct 15 '17 at 6:10
  • @ReneLarsen So are the restroing the contents on iPhone and restaring it on iTunes not the same? – Blaszard Oct 15 '17 at 18:51
  • Yes if you do a General > Reset > Erase All Content and Settings it should be the same. – Rene Larsen Oct 15 '17 at 21:54

Yes. Download the latest .ipsw file for your device. I get my stuff from Redmond Pie. I prefer clean installs as well. The .ipsw file is around 2-2.6 GB.

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