try this in case you missed it

If you want to try OpenPli or OpenATV then as per normal for online flashing ...
Blue Button /VIX/ ImageManager/ Download(yellow button) —-> choose OpenPli/OpenATV in download feeds -> select your image, then download
Once downloaded, select in list and hit flash(blue) button -> once flashed will reboot to new image

From either image long press power Button to get multibboot restart menu