I have an iPhone 4 . . . I want to give it to my grandson . . . I don't remember the Apple password I used back in the day when I used the phone. Can you help me reset it so it can be used by my grandson?

You can call apple support's 1800 line they'll be able to help

Give the store a call and ask that exact question.

Try entering the password wrong a lot of times and it may prompt for a factory reset. I haven't really done any research on that claim so please excuse me.