Sorry for my bad english. It is not my native language. I just want to ask if how can I install/return back to the official samsung release of Froyo 2.2. I'm using Samsung Galaxy SL i9003 then i tried to switch it to Jellybean 4.1 custom rom but I experienced a lot of problems. So my question is how can I switch it back to Froyo 2.2 official release so I can upgrade it again to Gingerbread via Samsung Kies. Thanks and more powers guys!