Exchanged 8900s after corner of screen went bad. New 8900 device switched fine. Re-downloaded App World which was a slightly different version, so I said "yes" to replace. Rebooted, and now getting "App Error 300 (or 200 or 280, It's really too small), RESET".
After multiple resets and a battery pull-nothing. Desktop manager does not recognize it either. What did I do, and how can I recover? Thanks...Jeff.