screen is white, voice control won't turn off and can't unlock screen
My son was playing with his iPod Touch (4th generation I think - purchased June 2011) and he accidentally hit the home button 3 times and now the screen is white, voice control won't turn off and we can't unlock the screen because it won't accept the passcode. I have tried to do a hard reset several times now (holding the home and wake/sleep key until screen goes black, and then Apple logo appears). After the Apple logo appears in white with a black screen, the screen goes to the reverse (white with black Apple logo) and then voice control prompts me for a passcode. I've tried saying the password as well as entering it and it knows I've typed the correct numbers but it still won't unlock.
Is there a way to completely reset the iPod Touch when the screen is locked?
He doesn't know what else he's done to his Touch other than hitting the home buttons 3 times.
Any help you can offer would be greatly appreciated.
K
iPod touch, iOS 5.1