My S3 is from Bulgaria, I'm in Canada. I've tried checking for the 4.3 Update over the air & it says there's none avaliable which I know is not true. I tried Kies but it says my Firmware is not recognized. So my only choice is through Sammobile but I'm seeing 4 different codes for Bulgaria. I'm seeing VVT, BGL, GBL & MTL. Does it matter which one I flash? I believe the VVT & MTL are carriers, mine came unlocked. Here's some info on my S3 AP: I9300XXBLH1 CP: I9300BULG2 CSC: I9300EURBLH1 Any help would greatly be appreciated.