Does anyone have experience in
downgrading without a loss of data?
In former times (i.e. with iOS 10 beta) I downgraded by putting the iPhone in recovery-mode and installing the stable version as an "update" in iTunes. This worked quite well without loss of data or the need to recover any backup.
In beta 2 this didn't work, but I found a video on YouTube telling that exactly this should be possible now this way:
- Download 10.3.3 IPSW
- Turn off find my phone AND turn off passcode-protection and TouchID
- Put iPhone to recovery-mode (press vol- and power for > 10s)
- In iTunes option-click "update" and choose IPSW to update phone.
- Done.
Now, does this really work or will one be stuck in boot-loops? Anyone tested? If it works, I guess I might leave that beta behind me and roll back to 10.3.3. Though I got a 10.3.3 backup, that one is a few days old and will miss some data.
EDIT: This ist the video: