How to fix 'Device unknown' error on iPad without proof of purchase?
I recently found my iPad 2 again... under a pile of stuff.
When I want to start it, it gives me "Device unknown". To get it fixed, according to the Support you need proof of purchase. Purchase was in 2011-2012 so I'm pretty sure I don't have my invoices of those dates anymore.
Any other way I can get it working again? It's the iPad I used for my studies, so whatever information is on there, I don't need it anymore.
[Re-Titled by Moderator]
Original Title: Device unknow iPad 2