Format a USB drive to FAT32 and copy the extracted file to the root directory (do not put it in a folder). General Installation Steps Power Off: Turn off the TV and unplug the power cord. Insert USB: Plug the flash drive into the TV's USB port.

Finding the exact multi-part firmware files for the IRIS SAT 42E790S

An update progress bar should appear. Do not turn off the TV until it finishes and restarts automatically.

(a model from the Algerian manufacturer IRIS) usually requires accessing specialized TV repair forums or the official IRIS customer portal, as these files are rarely hosted on public global mirrors.

of the archive into the same folder on your PC.

If you have found a multi-part archive (e.g., part1.rar , part2.rar ), you cannot use them individually. You must:

For guaranteed safety, check the official IRIS website or contact their customer service via Facebook to request the exact firmware for your model.