I have contacted apple for support was not provided anything of use despite their efforts. Tried using various computers to fix it and different apple cords but still the same error.
iPad, iPadOS 15
If you continue to experience difficulties you might be well advised to seek assistance directly from the Genius Bar at your local Apple Store or Apple Authorised Service Provider (AASP) - where the technicians will be able to test and assess your iPad - and offer help:
Unable to to restore/update my ipad and keep getting error 4013.
