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: Press and hold the Power button (or sometimes CH+ ) on the TV's physical panel—not the remote.
Official IRIS Customer Support - get help with Readiris & IRIScan Download IRIS SAT 42E790S Firmware USB part1 rar
: Use a tool like WinRAR or 7-Zip to extract part1.rar . If all parts are in the same folder, the software will automatically combine them into a single firmware file, often named MstarUpgrade.bin or similar. 2. USB Drive Requirements : Press and hold the Power button (or
: Ensure you have downloaded all parts of the archive. A single .rar part cannot be extracted without its matching counterparts. Download IRIS SAT 42E790S Firmware USB part1 rar