iphone 4 activetion lock

Please see the many previous times this question has been asked and answered before, but to summarize the situation that exists here, you will need the Apple ID and password associated with the Activation Lock, or the original purchase receipt and matching photo ID and a discussion directly with Apple Support.

Activation Lock is a theft deterrent, and it wouldn’t be much of a deterrent mechanism if it were easy to bypass.

If this iPhone is a recent acquisition, contact the seller for resolution or refund, though if this follows the usual pattern, the seller is likely no longer available.

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

The All Too Common SAD Reality of Buying a used iPad/iPhone - Apple Community

If you forgot your Apple ID password - Apple Support

You need the Apple ID and passcode of the user.