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.
Using the wrong firmware can "brick" your TV, making it unbootable. Always double-check that the firmware matches your specific model number and mainboard version before proceeding. Download IRIS SAT 42E790S Firmware USB part2 rar
For guaranteed safety, check the official IRIS website or contact their customer service via Facebook to request the exact firmware for your model. Format a USB drive to FAT32 and copy
Do you have the (e.g., TP.MS338...) or the Part 1 file already? Using the wrong firmware can "brick" your TV,
Reliable firmware parts are often shared on specialized sites like ReceiverPro or KazmiElecom, which aggregate updates for brands like IRIS, Condor, and StarSat. How to Handle "Part 2 .rar" Files
An update progress bar should appear. Do not turn off the TV until it finishes and restarts automatically.