An ipad newbie here.
I bought an ipad 1 (16GB Wifi) which was originally a demo model. Now before you say how I got one, here is the answer. I am a staff of that company and got good staff discount on remaining units - so I bought one.
But being a demo model, iOS has some limitation like it is not allowing me to delete preloaded apps (which is taking up lots of space). Reverting to factory setting takes me back to same demo build!
Is there any way to load the device with clean standard iOS?