Check if the firmware you want to use is the right one for your SAMSUNG I9300 Galaxy S III. The table below contain all the useful information you might need for your software. The firmware posted here was designed for GALAXY S ? for I9300XXUGML3 PDA version and I9300OLBGML3 CSC code. This is a dedicated I9300XXUGML3 bootloader type and 4281417138 CRC software. Android Jelly Bean 4.1.2 comes with Android Security Patch Level. Please also make sure if the 2303192 changelist and build date are correct for SAMSUNG I9300 Galaxy S III.
If the specification posted for the software is correct and you want to use the MM1 OPEN software from Singapore, simply tap on the download button. Size of all flash files posted is 921.25 MB.
This firmware also works for: