How do i figure out what Apple ID was used on my iPad mini? Stuck on "Activate iPad"
My son got an iPad Mini for Christmas a few years ago, then got an iPad Air for his birthday and gave me his iPad Mini, and when I updated to iOS 9.3 it asked me to Activate the iPad using the Apple ID that was first used to set it up, my son does not remember what that Apple ID was, how would I go about fixing this?
iPad Mini