I let my friend borrow my IPhone 6 and she logged out of my icloud and logged into her own but afterwards she forgot ALL the info to her icloud. Password, email, security answers and all. We tried to factory reset the phone and it worked but the icloud account is still on there when we power the phone up and we have to log in to get any further than choosing a language. Please help.
Read more: Can't get friends icloud account off of my phone?