You can follow the Apple Support which would be help of the stuck, and some will be fix the problem. https://support.apple.com/en-us/HT201263 Remember to update your iTunes or reinstall it. If that cannot work on your iPad. You can try this. http://www.pcadvisor.co.uk/how-to/apple/how-get-iphone-out-of-recovery-mode-3448684/ It's about to get iPhone out of recovery mode, maybe the same as iPad. The last method is to use recovery tool like the FonePaw iPhone Data Recovery and Wondershare which can solve the stuck problem and recovery the deleted data from your iPad. I used the former to fix my iPad 3, and they have a tutorial about fix iPad stuck in recovery mode. You can find on the website of FonePaw.