I followed the internet tablet school instructions. First, I updated the firmware, that worked fine. Both before and after, I could not install anything. The log does not show any errors. I disabled the catalogs one by one and never was able to update.

I purchased the unit second-hand and it seemed to work fine except that I could not install or update and applications. The applications the original owner had on the unit worked until I updated the firmware; now I have lost those (not that I cared about those particular applications).

What should I try now?