So i have 2 phat vitas. one ive hacked thats on 3.68 and one i think is on 3.69. i know this has been asked over a billion or so times but does anyone recommend a good video tutorial on how to downgrade to 3.65 without having to install a demo from the store? its been quite a while since ive played around with the vita but i have been keeping up to date with things so far. thanks for the help