Fix “The password you entered to protect your iPhone backup could not be set. Please try again” Error Message
If you have attempted to enable backup encryption in iTunes for an iPhone, iPad, or iPod touch, you may encounter this fairly frustrating error message; “The password you entered to protect your iPhone backup could not be set. Please try again.” Assuming you do try again, you wind up in an endless loop of entering a password that iTunes refuses to accept for setting for the encrypted backup.
With virtually no lead on how to resolve the error other than an infinite loop of entering passwords and seeing the same dialog again, it’s easy to get frustrated and give up on encrypting the backup, but you don’t need to do that, as it turns out there’s usually a fairly simple solution to fixing this ‘password could not be set’ error message, though it’s certainly not even close to obvious.