The instructions on the website where you download the firmware has the instructions on unpacking the file and then on updating the firmware in the TV. Basically, you unzip it and put in at the root directory of a USB key, then unplug the TV while it's running, then plug in the USB key, then replug the TV power cable and it updates automatically over a few minutes.
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Jim & Martha Abernathy
2014 Montana 3402RL Level UP, Sailun S637's, TST 507, 500W solar
2014 Ram 3500 Laramie® 4x2 diesel dually crew-cab 3.73 axle, Reese R20
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