https://xdaforums.com/t/guides-2023-walmart-onn-google-tv-4k-yoc.4610749/
It appears that the new devices have been silently changed by Google to no longer allow you to have the same functionality you did before. Boot loader unlocking is now impossible unless someone can find an exploit.
Here are the images of the inside just in case its useful:
I don't know where else to post this. Please help spread the message about Google screwing us over.
I bricked one trying to unlock the bootloader a few months back. unfortunately I'm stuck with stock, but at least I can load up my IPTV with it.
I just thew out the device and kept the remote. The remote works with Kodi with a little work. I can send you my udev files if you are interested