I just got a 7" Cruz Tablet/eReader from Big Lots. The label on the box says T103. When I boot it up and check the model number in Settings, it says PT701. And the manual pre-installed on the device is for the T301. I'm trying to upgrade to Android 2.2. There's a label on the box saying this can be done. I don't have it in front of me right now but something along the lines of surf to this URL and follow the instructions. The URL redirects to Support Center. I've tried the T301 and T100 series upgrades. They both start the upgrade but then get validation errors. How can I be sure what device this is, and how can I upgrade the firmware successfully? Thanks!