what do i do if i dont have a computer to undisable my iphone

You will need a computer to complete the task as you already know. You can try and borrow a computer from a family member or a friend. If that is not possible then you can visit the Apple Store or an Authorized Service Center and see whether they can help.

Axel F.

You ask a friend or family member who has a computer for help. Or get an appointment at an Apple Store.