We have four iPads we purchased for our sales staff who have since left and unfortunately did not leave their passcodes. I was able to figure one of them out, however, the other three are still an issue (Model A1709 & A1674).
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 iPad to a computer (Windows 10 PC running the latest iTunes version) or Mac (which can run 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 iPad, or your iPad is disabled
Regards
Giulio
iPad reset when employee leaves but does not provide passcode nor receipt
