Whitepaper discussing h-encore kernel and user modifications on the Sony PlayStation Vita versions 3.65, 3.6,7, and 3.68.
You can download it from the following link: https://packetstormsecurity.com/files/download/149329/sonypsvita3-mods.txt
Source: https://packetstormsecurity.com/files/149329/Sony-PlayStation-Vita-3.65-3.67-3.68-h-encore-Kernel-And-User-Modifications.html