"I am upgrading my iphone 5 to iOS 8.4. Before I backed up my phone (via iTunes 12.1 on my laptop) and downloaded and installed iOS 8.4. I am now going through the setup process and it is at the "Restore from iTunes Backup" step. I connect to iTunes and iTunes is prompting me for a password to "unlock your iPhone backup file."
You may be asked to enter your password every time you sync your iOS devices, and the worst thing is you've forgotten the password for that encrypted file. Below are two easy ways for you to turn off iTunes/iPhone backup password, even if you can't remember your passcode.
Connect your iOS devices (iPhone/iPad/iPod) to iTunes and click Backup, then input your password in the pop-up window. After that, deselected the "Encrypt iPhone Backup Password". Next time you sync iPhone, iPad or iPod to a computer, it won't popup any more.
It is said that 80% iOS users forgot their iTunes backup password and many of them think that it's the same as Apple ID password. The following 3-step guide shows you how to recover your iTunes backup passcode first and then turn it off.
Get back iTunes forgotten backup password by Tenorshare iPhone Backup Unlocker.
Download and Install this iTunes backup password finder. Open it.
You can now disable iPhone backup password.
iCloud and iTunes is Apple data manager tools for iOS devices. Someone even want to turn off iCloud to backup their files. Because iCloud one backup maybe 1 GB above. Take this guide how to turn off iCloud backup.