: 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
: A file like Stm32ud.bin or similar for the micro-controller unit. sc25131-LTS2v103.part1.rar
Based on similar firmware structures found on technical forums like 4PDA , the extracted folder will typically contain: : Right-click part1
: This usually stands for Long Term Support (v2) , indicating a stable release branch of the software. v103 : This is the version number ( Version 1.03 ). sc25131-LTS2v103.part1.rar
: Text files such as config.txt or updatecfg.txt that define screen resolution and hardware settings.
: Core OS files like system.img or boot.img .