my friend changed her passcode and she restarted her iPhone. Now she doesn't remember her apple id password.

so my friend changed her passcode but she forgot it. She restarted her phone bit she doesn't remember her apple id password. she only knows her email. i tried putting it on recovery mode to restore it but it asks for her apple id and password. is their a way to factory reset her iPhone so that it wont ask for her apple id and password?