To use the CXMB theme your PSP should be running a custom firmware with CXMB plugin installed on it.We have already seen how you can install custom firmware on PSP, so let us now see how to install the CXMB plugin to use custom themes.What I was not aware of is that the pandora technique in not necessary to downgrade from custom firmware psp's. So in case there are others like me, I thought I would share my knowledge. Download How-to instructions PSV hacker and modder Forum.
Press and hold down the right shoulder button while powering on the psp. When done, manually restart the psp by completely shutting down again. When powering back on, you will see a blue error screen with lots of words in different languages on it. Even just one person because then, it was worth writing.
There are many types of games that you can play on your PS Vita through custom firmware.
The ISO, CSO, and PBP or commonly called EBOOT files.
Giving your PSV a custom firmware will allow access to many of these homebrew applications.
Firmware x Tractor will create a backup copy of the consoles firmware that can later be manipulated or restored to get back the warranty coverage.