Use a USB flash drive (ideally 8GB or smaller) and format it to FAT32 .

Firmware updates are risky. Ensure the firmware version matches your TV's mainboard model exactly to avoid "bricking" the device.

Download all files named 40E510S.part1.rar , 40E510S.part2.rar , and 40E510S.part3.rar . Place all parts in one dedicated folder on your computer.

Plug the TV back in. Some models will detect the file and start flashing automatically.

Right-click on and select "Extract Here" using WinRAR or 7-Zip .

Press and hold the Power button on the TV panel (not the remote) while plugging the power cord back in.

Copy the extracted firmware file (e.g., all_upgrade_v510.bin ) directly to the root directory of the USB. Do not put it inside a folder. Step 4: Installation Guide Turn off your IRIS SAT TV and unplug the power cord. Insert the USB drive into the TV's USB port.