: Once extracted, you should see a file named allupgrade_538_sos.bin (or similar). This is the actual firmware file. Step 2: Prepare the USB Drive

Since the firmware is often distributed in multi-part archives (e.g., part01.rar ), you must download all parts to the same folder on your PC before extraction.

The TV will restart automatically once the process hits 100%. Insert the USB drive into the TV. Navigate to Settings > Support or About . Select Software Update or System Update .

Choose or USB Update . The TV will detect the file and prompt you to begin. Important Precautions