
Samsung GALAXY S III I747MUMUEMK3 is an Android firmware for Mexico (TCE). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build I747MVLDMD3 https://samfirm.shop/build/I747MVLDMD3: bootloader binary raised from L (21) to U (30), so after installing it there is no way back to older builds. A newer build for SGH-I747M is available: I747MVLUFOB4 https://samfirm.shop/build/I747MVLUFOB4.
Bootloader binary U (30). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.
Pick your region (CSC) to download the matching firmware package.