Ok merci pour la précision, en espérant qu'une nouvelle faille kernel soit vite trouvé et porté pour le 1.81.
Pourtant, dites moi si je me trompe, mais voila ce que je peux lire dans le readme du paquet de MHFU: How to install/run on the Vita
========================================================
0) This version of HBL relies on an exploit in the Game Monster hunter Freedom Unite (Monster hunter Portable 2G).
In order to run HBL you need to own a legit copy of this game on your PS Vita.
At the time of this writing, the game is not patched but it goes without saying that HBL comes with no guarantee. Buying this game is your own decision and I take no responsibility if HBL ends up not working on your machine
1) Once you have a copy of the game, 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.
OpenCMA can be downloaded at
http://wololo.net/downloads/index.php/download/12522) 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
3) 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)
4) To run HBL, start the Monster hunter game, select "Download" in the main menu, then select "yes" when the game asks you if you want to download. At this point, HBL should start.