How to Access the Bootloader Menu on Bell/Telus 4K Arris Set-top boxes (includes exploration)
Channel: rootbrian
Date: 2021-08-04

I decided to get this video done, and this likely also applies to older bell/telus (HD/SD) set-top boxes powered by Windows CE/Embedded, that solely rely on a network connection for TV services (IPTV) from a telecom provider that provides bundles.

Press and hold MENU as soon as the RED LED lights up, until the screen changes. From there, you can easily change anything listed - and totally screw it up too, if you wanted. 

(not in the video) If I/you had an NFS thing going on, I would have it boot debian off a network drive instead, however, I do not. Doesn't seem to be a way to access any terminal functions (I tried with a USB keyboard - the ports are disabled for data transmission.).
Unsure if it can boot off the 1TB drive inside the unit, since it's linux, it's next to impossible to figure out what distro it uses.

NOTE: If you *don't like what you are watching/seeing/hearing/reading*, it is best to press ctrl-shift-delete (command shift delete on mac), select "from the beginning/since installation/everything" and click Clear Data. Then press Alt-F4 or command Q on a mac.
On an android device: Clear private data, then hit the task switch soft/hard key, swipe left/right or hit "close all", or close the tab in the browser.
On apple/iOS: Clear private data, then swipe up (or press and hold home button), swipe up again to close the browser, AFTER closing the active tab.
Feature/older devices: Menu ▶ Close/exit.

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