You use RSD Lite 4.9 to SBF your phone with the .340 SBF file...when you are done with the SBF process, then you factory reset it(holding power and home, then pressing search, then selecting wipe data and wiping cache). That's all part of the process. You can't just SBF your phone. You always do a factory reset afterwards, then you'll be on stock 2.2.1
Originally Posted by go_boy96
Also, I sent you a link to a Linux method to SBF it...it is totally different from the usual way of doing it where you just download files to your computer. I don't think you did it the Linux method. You should read up on that link. Maybe people swear by it, and it works where the other method ususally fails.