Sc25131-lts2v103.part1.rar -

: Use a high-quality USB drive formatted to FAT32 .

: Core OS files like system.img or boot.img . sc25131-LTS2v103.part1.rar

: Right-click part1.rar and select "Extract Here." Copy the resulting files (not the folder) directly to the root directory of your USB drive. Do you have the other parts of this archive, or : Use a high-quality USB drive formatted to FAT32

: Text files such as config.txt or updatecfg.txt that define screen resolution and hardware settings. sc25131-LTS2v103.part1.rar

: Confirm your device's current version in Settings > System Info . Flashing incorrect firmware can "brick" your device.