Right-click and select "Extract Here" using WinRAR or 7-Zip.
Before flashing, verify that the firmware matches your TV's internal (e.g., TP.MS338.PB801 or similar). Using the wrong firmware can "brick" your device (make it unbootable). You can usually find this number printed directly on the green circuit board inside the TV. 3. Extraction Process Download IRIS SAT 42E790S Firmware USB part3 rar
Release the button when the "Software Updating" progress bar appears. Right-click and select "Extract Here" using WinRAR or 7-Zip
Place all parts ( .part1.rar , .part2.rar , .part3.rar ) in one folder. Download IRIS SAT 42E790S Firmware USB part3 rar
To successfully download and install this firmware, keep the following points in mind: 1. Locate the Complete Set