Team M33 have released their new custom firmware, based on Sony’s official
2.71 firmware. The team have made a number of changes to the firmware,
including the use of firmware 3.71. According to the team, this will be their
“last but one release”. The team also plan to release a PSP slim and fat
unbricker, and a 1.5 kernel patch. Check out the change log below.
- Now uses 3.71
VSH Menu is not longer launched using HOME key, but using SELECT now. This
is to not interfere with the XMB
function of home, which is now more useful in this firmware.
Psp Slim: umdcache was allocating memory even when homebrew was
launched, wasting memory that homebrew programs may want to use. Now
umdcache module is stopped before it can allocate any memory, only in
the case homebrew is launched.
Also, memory is unprotected for user memory usage by M33 core (only
when homebrew is launched).
Developer, for a sample of how to use the extra memory, see the
extra ram sample of the M33 SDK
- Both version boot now from 3.XX ipl, and are independent of 1.50.
Important to note would be the following:
The main installer will not install 1.50 kernel anymore.
A 1.50 kernel addon for 3.71 M33 that will install inside 3.71 M33 will
be released in a few days (for fat PSP only)
due to some changes in kernel nids by Sony
you can expect a lot of kernel plugins not working anymore.
- Programmers: refer to the sdk readme for details.
As for the installation procedures, a step by step guided is
First method for both psp, the preferred when possible:
Requeriments: a fat psp slim with 3.52 M33-3 or 3.52 M33-4. Previous
versions of M33 won’t work, due to a bug that affects them and OE; or a psp
slim with 3.60 M33.
Copy the UPDATE directory into /PSP/GAME/UPDATE and copy the EBOOT.PBP of
the 3.71 Sony updater there but with name “371.PBP”. Note: the program
will not even show if you copy it to a different folder than that.
If you are in the fat psp, make sure you have configured the psp to run
the game folder in the 3.XX kernel.
Press X, and the Sony updater will begin. Sit and enjoy while Sony
code installs 3.71 M33
When finished, the updater will ask you to reboot (pressing X or O).
DO IT. Do not skip this step as shutting down the psp by yourself
will end with a brick.
- You should be now in 3.71 M33