I just got a used Dell Streak 7 Android tablet, it has Android 2.2.2 , I don't know if it's rooted, I have no access to the app market because it has all previous owners stuff on it. I can't even delete their photos from it, I do it, but i reboot and the photos are back. It does not keep any of the settings that I change either when I reboot. It is the wifi & T-mobile version, even though there is no outside branding for T-mobile on device itself.
I just want to wipe it clean and start all over again, but cannot get it to reset, tried both software version and the little button by the SD card slot. I would like to upgrade to Android 3.2 if possible also, but my main purpose right now is to wipe all the previous owners stuff off of it, set up the market place with my account and move forward (and hopefully get it to remember the settings I set when I reboot, because it's a pain in the butt to everytime re-enter my home wifi code).
i've been trying the factory reset without reinstalling, and it doesn't do anything for deleteing the data. I'm hoping that reloading 2.2.2 will do it. I haven't found any other way, if that doesn't work, I don't know what else to do.
I have tried the same thing with 3.2 and if you have 2.2.2 and are trying to use a 2.2.2 "update" it won't work because your device recognizes that it is the same and not an update therefore keeps the original that is on your device.