Going through the guide right now to install a9hl, however, in "Section IV - Restoring the System" I did the "follow Move RedNAND" step as want to moving my previous gateway emunand.
https://github.com/Plailect/Guide/wiki/Part-3-(arm9loaderhax)
Once I finished "follow Move RedNAND" part the...
I managed to install TN-V bubble and the whitelist patch on a PSTV 3.52 before updating to 3.55.
Sadly, after everything went successful I swapped the memory card with the one on my PS VITA 3.55 to try and run some of my games on the TV but when I went back to run Netflix on the original memory...
Only thing drive me crazy is all these new horror games nowadays is its so dark, all time. I can't even play them. I understand they trying to create spooky but be creative a little, not just darkness with pop out scare scenes.