Seems like your remote software for the 54.1 is newer than mines. As for Hopper Plus, you would know if you had one since it's basically a Android TV box from DISH that sits between the Hopper 3 and the TV and the HDMI would plug into the Hopper Plus instead of the Hopper 3 and then a USB cable connects the Hopper Plus to the Hopper 3.
As for the channels, maybe mention it by channel name and number? Does the problem happen if you hit up arrow or up arrow and down arrow before doing the down arrow 5 times?
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I cannot consistently cause the Hopper 3 shutoff to occur. It is intermittent and has happened while in the channel guide screen and pressing the down or up arrow keys. It has also occurred simply by pressing the 'Guide' button without pressing any other keys.
I cannot consistently or reliably reproduce the error. It does happen multiple times a day and when it happens when my wife is watching shows on the Hopper 3 she lets me know about it very loudly.
