I have a Sylvania 7" Tablet, I have updated to DG 2.2, then I installed the file flash_for_21, thinking this is what I needed because during the installation of some programs, it said to install flash. I followed the instrutions and put it on the SD card, not in a folder and it asked me if I wanted to continue because I would remove system file. Well, I did. Now, it will NOT reset. SYLVANIA IS THE ONLY THING IT COMES TO. I have tried 50 times to do a reset. Anyone out there that can help me get my tablet restored to factory. I have found where someone had the problem, but mine never ask for image file or anything.