Apple phones can go to the after-sales service to unlock if they forget the password, but only if there is a purchase invoice.If there is no invoice, you can also try to contact Apple customer service to unlock it.When contacting customer service, you need to provide some personal information to confirm your identity.In addition, if the phone is set to "Forgot Password" mode, it can only be unlocked by resetting the phone.Resetting the phone will clear all data. Please back up important data in advance.