: You must have every single part in the same folder on your computer. If one part is missing, the extraction will fail.
When downloading firmware split into multiple parts (e.g., part01 through part07):
: Use a tool like WinRAR or 7-Zip . Right-click on Part 01 and select "Extract Here." The software will automatically pull data from the other parts to recreate the original .bin file. Installation Instructions
Once you have the extracted firmware file (typically named allupgrade_538_4G_sos.bin or similar):
The firmware for the Smart TV (mainboard CV538H-A50
: Use a 4GB or 8GB USB drive formatted to FAT32 .
: Wait for the process to hit 100%. The TV will usually restart automatically. Do not turn off the power during this process, as it can permanently damage the mainboard.
: Place the .bin file in the root directory of the USB (not inside any folders). Flash the TV : Unplug the TV from the power outlet. Insert the USB drive into the TV's USB port. Press and hold the Power button on the TV (not the remote). While holding the button, plug the TV back in.