Originally Posted by guardianofavalon
How do i do that? Do you mean a factory reset? It's apparently not possible without turning the device on with the kobo glo...
To factory reset the glo: hold the power button ON for 15-20 seconds to make sure it is off. Press and HOLD the light button while turning on the Glo. That should put you into a factory reset if that will solve the problem (no guarantees).
There was a post somewhere about this and it was a problem specific to the demo models and the security case it was in if I remember correctly.