I don't know what the letter stand for, referring to SBF, but when most people on the forum talk about it they are referring to re-loading or re-programming your phone using the SBF file from the vendor.
With gingerbread, I have had no issues. My battery lasts longer, all my apps are working. Yes there are a few things I wish I could change but that is just like every other ones I have used. No OS is perfect. If you don't like it, then put something else on it. There are several good ROMs out there that you could use. So stop complaining about the upgrade.
With gingerbread, I have had no issues. My battery lasts longer, all my apps are working. Yes there are a few things I wish I could change but that is just like every other ones I have used. No OS is perfect. If you don't like it, then put something else on it. There are several good ROMs out there that you could use. So stop complaining about the upgrade.