my iphone 7plus disabled and says connect to itunes

Keeping in mind that if you don't have a backup all data will be lost on that device (except those that you eventually synced to iCloud), pay attention to the specific gestures that you need to perform while connecting your iPhone to a computer (Windows 10 PC running the latest iTunes version) or Mac (which can have iTunes or Finder, depending on the macOS installed on it), and follow these instructions to re-gain access to your device:--> If you forgot the passcode on your iPhone, or your iPhone is disabled - Apple Support

or watch this support video about the same matter:

https://www.youtube.com/watch?v=7s8-zLG9ySQ

Regards

Giulio

Two of the error codes you mentioned are managed in this support article:--> iOS update and restore errors - Apple Support

If you still get no help, contact again Apple Support using this link:--> Get Support , or make an appointment at an Apple Store or Authorized Service Provider among this list:--> Apple – Location Selector

Regards

Giulio

I did everythin on apple support website and same problems appear either error 83, 17, 18, 53, or phone can't be found. I repeated the same way on the video and yet nothing happens. I tried to contact the apple service but they didn't contact me back as they "said"