iPad2 Passcode invalid - iTunes not recognising

Try putting it into recovery mode, you should then be able to reset your iPad and restore/resync your content to it : iOS: Forgot passcode or device disabled

See if this helps: iOS: Forgot passcode or device disabled. try forcing it into recovery mode as listed at the bottom.

How can I unlock my iPad if I forgot the passcode?

http://www.everymac.com/systems/apple/ipad/ipad-troubleshooting-repair-faq/ipad- how-to-unlock-open-forgot-code-passcode-password-login.html

iOS: Device disabled after entering wrong passcode

http://support.apple.com/kb/ht1212

How can I unlock my iPad if I forgot the passcode?

http://tinyurl.com/7ndy8tb

How to Reset a Forgotten Password for an iOS Device

http://www.wikihow.com/Reset-a-Forgotten-Password-for-an-iOS-Device

Using iPhone/iPad Recovery Mode

http://ipod.about.com/od/iphonetroubleshooting/a/Iphone-Recovery-Mode.htm

You may have to do this several times.

Saw this solution on another post about an iPad in a school environment. Might work on your iPad so you won't lose everything.

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‘iPad is disabled’ fix without resetting using iTunes

Today I met my match with an iPad that had a passcode entered too many times, resulting in it displaying the message ‘iPad is disabled – Connect to iTunes’. This was a student iPad and since they use Notability for most of their work there was a chance that her files were not all backed up to the cloud. I really wanted to just re-activate the iPad instead of totally resetting it back to our default image.

I reached out to my PLN on Twitter and had some help from a few people through retweets and a couple of clarification tweets. I love that so many are willing to help out so quickly. Through this I also learned that I look like Lt. Riker from Star Trek (thanks @FillineMachine).

Through some trial and error (and a little sheer luck), I was able to reactivate the iPad without loosing any data. Note, this will only work on the computer it last synced with. Here’s how:

1. Configurator is useless in reactivating a locked iPad. You will only be able to completely reformat the iPad using Configurator. If that’s ok with you, go for it – otherwise don’t waste your time trying to figure it out.

2. Open iTunes with the iPad disconnected.

3. Connect the iPad to the computer and wait for it to show up in the devices section in iTunes.

4. Click on the iPad name when it appears and you will be given the option to restore a backup or setup as a new iPad (since it is locked).

5. Click ‘Setup as new iPad’ and then click restore.

6. The iPad will start backing up before it does the full restore and sync. CANCEL THE BACKUP IMMEDIATELY. You do this by clicking the small x in the status window in iTunes.

7. When the backup cancels, it immediately starts syncing – cancel this as well using the same small x in the iTunes status window.

8. The first stage in the restore process unlocks the iPad, you are basically just canceling out the restore process as soon as it reactivates the iPad.

If done correctly, you will experience no data loss and the result will be a reactivated iPad. I have now tried this with about 5 iPads that were locked identically by students and each time it worked like a charm.

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Try it and good luck. You have nothing more to lose if it doesn't work for you.

Re: iTunes connection

iPad not appearing in iTunes

http://www.apple.com/support/ipad/assistant/itunes/

iOS: Device not recognized in iTunes for Mac OS X

http://support.apple.com/kb/TS1591

iOS: Device not recognized in iTunes for Windows

http://support.apple.com/kb/TS1538

iTunes for Windows: iTunes can’t contact the iPhone, iPad, or iPod software update server

http://support.apple.com/kb/ts1814

iTunes for Windows: Device Sync Tests

http://support.apple.com/kb/HT4235

IOS: Syncing with iTunes

http://support.apple.com/kb/HT1386

Apple - Support - iPad - Syncing

http://www.apple.com/support/ipad/syncing/

iTunes 10.5 and later: Troubleshooting iTunes Wi-Fi Syncing

http://support.apple.com/kb/ts4062

iOS: “Not enough free space” alert when trying to sync

http://support.apple.com/kb/ts1503

You may need to delete iTunes on your computer and then reinstall.

How To Completely Uninstall and Remove All Traces of iTunes

http://zardozz.com/zz/2008/04/how-to-completely-uninstall-and-remove-all-traces- of-itunes.html/

Wi-Fi Sync Not Working? Here’s How to Fix it for All iOS Devices

http://osxdaily.com/2013/02/17/wi-fi-sync-not-working-fix-ios/

 Cheers, Tom 😉

You've tried a different cable and USB port on your computer, and tried reinstalling iTunes ? Have you got a second computer that you could connecting the iPad to, to see if that recognises it - that will hopefully eliminate the cable as being the problem