: Do not turn off the TV during this process. Once finished, the TV will usually reboot automatically. Remove the USB drive after the reboot to prevent it from starting the update again. 4. Troubleshooting
: Keep holding the button until you see an "Upgrading" or "Software Updating" progress bar on the screen.
Since firmware files for 4K TVs are large, they are often split into multiple compressed parts (e.g., part1 to part4). You must have in the same folder to extract the final firmware file. Reliable Sources : Search for the " IRIS 43G7200