BevvyB wrote:
You got a progress bar? Mine never makes it that far. Mac gets ready to update iPad then crash quits before its even started. Doesn’t even come up with a crash dialogue. Meanwhile iPad just sits there either flashing the Apple logo or with the cable update screen.
Start by connecting your iPad to its Power Adapter and allow the iPad to charge for at least an hour - or preferably overnight. This step is advised as a battery with very low charge, or is failing, may produce symptoms that emulate a boot loop.
If the problem fails to stabilise, whilst still connected to the Power Adapter, attempt a forced restart of the iPad:
Force restart iPad - Apple Support
If your iPad is stuck is actually stuck in a boot-loop, you’ll need to resolve this specific issue - which may entail “restoring” the most recent version of iPadOS to the iPad. This support page outlines restoration of an iPad to Factory Settings:
Restore your iPhone, iPad or iPod to factory settings – Apple Support
You’ll need access to either a Windows PC (with iTunes for Windows installed) or a Mac (with iTunes or Finder - as appropriate for the installed version of MacOS).
Download and use iTunes for Windows – Apple Support
Update to the latest version of iTunes – Apple Support
Use of a PC or Mac computer is unavoidable. If you don’t have access to a suitable computer of your own, that of a helpful friend or family member will suffice. Alternatively, the technicians at the Genius Bar of your local Apple Store or Apple Authorised Service Provider (AASP) will be delighted to assist.
Genius Bar Reservation and Apple Support Options - Apple