Forgot passcode
I upgraded my phone and factory reset my old phone to give it to my nephew. I wasn't in town for a month so I didn't use the old phone during that time but I came back and gave it to him and he says it has a passcode on it. I gave him the passcode I use on my new phone since it was the same on my old phone before I switched it over and it's not working. It's been disabled now because of too many wrong passwords. How do I fix it?
iPhone 6s Plus