via http://wololo.net/wagic/2012/03/02/v...edge-released/

If you are lucky enough to be one of the few owners of Motorstorm Arctic Edge, VHBL is now available for download.Please report Success/Failure here

As you will see, installing homebrews is a bit of a pain, so if you’re a good hearted guy who understands my explanations in the readme, please feel free to share homebrews packaged “correctly” for VHBL. Note: you can have several homebrews in one “install” file. For example if you zip all your PSP/GAME folder, all the homebrews in there can be installed at once by VHBL.

Credits

HBL port to the KR/US/EU/JP versions of the exploit by Wololo
Thanks go to:
  • Teck4 for the Motorstorm exploit
  • All the devs who made HBL what it is today, in particular m0skit0 and JJS
  • Mamosuke, j416, Some1, and all the other devs who kept the secret, that’s much appreciated guys
  • Monsieur2T2R for the cool VHBL icons/wallpapers

Vita Half-Byte Loader is a project to port the PSP homebrew loader HBL to the Playstation Vita, through the PSP emulator on the Playstation Vita.
Half-Byte Loader (HBL) is an open source Homebrew Loader for the Sony PSP and the PS Vita. It allows to play fan-made games on any PSP up to firmware 6.60, and on the Vita up to firmware 1.61. HBL allows to run emulators for the Game Boy, Nintendo 64, Sega Megadrive, NES, Super NES… and many other applications.
Disclaimer

  • VHBL does not technically allow you to play any pirated PSP or Vita games.
  • Although VHBL is free and open source, the current version relies on a vulnerability in a specific PSP game (Motorstorm Arctic Edge) that you need to buy from the PSN. VHBL comes with no guarantee, especially I cannot guarantee it will work on your Vita, so remember that you pay for a PSP game, and not for anything else. I do not do refunds for the money you gave to Sony
  • It is super easy for Sony to patch the vulnerabilities used by this tool, given the amount of control they have on the PS Vita. VHBL runs fine on firmware 1.61, but for all I know it is possible for Sony to patch the game’s vulnerability without a firmware update. So, once again, before buying the game and downloading VHBL, you need to understand that you pay for the game, and VHBL is a bonus that might or might not work
EU Version
JP Version
KR Version (Seen at least on the HK store)
US Version (not very useful)

How to Install and Run HBL

  • It is *strongly* recommended that you turn of all wireless connections on your PS Vita, and that you use OpenCMA on your PC instead of the regular CMA. This is recommended because otherwise your console has a way to force you to upgrade the firmware even before you get a chance to use the exploit.
  • Extract this HBL archive in your CMA PSP Savedata folder. It is a folder on your PC named PSSAVEDATA/[lots of random characters here]. If you don’t know where it is, check your settings in CMA
  • Connect your PS Vita to the PC through the CMA, it should give you the possibility to copy the savedata from your PC to the Vita. If not, you probably extracted it in the wrong folder. (Note: You will also want to install some homebrews with a similar technique, read the section below)
  • To run HBL, start the Motorstorm game, select “Load” in the savegame menu, open the HBL savegame, then go to “Wreckreation > Time Attack” and select “No”. At this point, HBL should start. See the video below for details:

How to Install and Run Homebrews

Installing homebrews on the PSP was an easy task. On the Vita, until better solutions are provided, it’s quite a pain in the ass.
The CMA will only let you copy savedata, and will not recursively browse folders.
To address this, HBL comes with a tool that can extract archives with a specific structure.
Packaging the homebrew for installation on the Vita:
1) download PSP homebrews from your favorite website
2) extract the homebrew somewhere on your hard drive, and with your favorite utility, zip it again with the *store* setting (no compression), in a file that you will name “install.zip”
3) take any PSP savedata (but not the one used for HBL!), and add the “install.zip” to that folder, in your PC CMA folder. so your PSP Savedata will look something like this:
in folder PSSAVEDATA/1a2b3c4def5678/UCUS12345000/ (or something like this) you will have the following files:
- ICON0.png
- PIC1.png
- DATA.bin
- PARAMS.SFO
- install.zip
Here you can download an example of packaged homebrew: Doom
Installing:
1) run OpenCMA on your PC, and CMA on your Vita
2) copy the previously packaged SAVEDATA (see above) with your homebrew in “install.zip” on your Vita
3) run HBL (how to run HBL is explained in the previous section)
4) navigate with the HBL menu to the SAVEDATA folder, then go to the folder you just downloaded (in my example, UCUS12345000), and clikc cross or circle on it
5) At this point, the HBL menu should ask you if you want to install the homebrew. select yes, and wait until HBL is done extracting your homebrew
6) The homebrew is now installed, and you can run it by going to the GAME folder, if everything went well, a new subfolder with your homebrew has been created here, and you can run the homebrew