On Friday I took my phone to a Samsung official support store in my country (Argentina) to fix something that was wrong with the display, I went back on saturday to find out that they had updated my phone to Jellybean... but then they told me that for some reason the unlock that I had on the phone was gone... and that there was no way they could unlock it again because the new jellybean didnt allowed it or something like that, and that they "forgot" to do a restore backup of the phone before they updated it. At that point I wanted to kill somebody:, i filled complaint forms and etc but they gave me no solution..
I went back home and tried to find a solution on my own, I ve tried different methods like galaxysunlock and other stuff and even though it shows like its unlocked it doesnt allow me to call or receive calls but it picks up signal. Then I thought maybe they´re right and it has something to do with JB but when I tried to change the ROM to 4.0.4 even 4.0.3 with ODIN the phone doesnt start it just stays in the first screen with the S shining and thats all... The only ROM that works is this one : I9100XWLS8_I9100XXLS8_I9100FOPLS3_HOME.tar the one with JB..
Please I really need help with this issue