Press and hold the on the TV panel (not the remote) while plugging the power cord back in.
: You must have every part (part01 through part09, or more if applicable) in the same folder. Opening the first part will automatically extract the full .bin update file.
: Use a tool like WinRAR or 7-Zip to extract the Ctv358Upgrade.bin (or similarly named) file from the downloaded archive.
: Copy the extracted .bin file directly to the root directory of your USB drive (do not put it in a folder). Step 3: Initiate Update : Power off the TV and unplug it from the wall. Insert the USB drive into the TV's USB port.
: Once the progress bar reaches 100%, the TV will usually restart automatically. Remove the USB drive after the reboot to prevent the update from looping. Common Troubleshooting
Keep holding until you see the update progress bar on the screen or the standby light begins flashing rapidly.
: Ensure your panel resolution is 1366x768 . Installing 1920x1080 firmware on a 1366x768 panel can cause a black screen or distorted image.
: Use a high-quality, FAT32-formatted USB drive (8GB–16GB recommended). Installation Steps