M33 have a released a 1.50 addon, for Fat PSP’s that will enable 1.50 kernel support. This is for PSP-1000 systems only (aka – PSP Fat).
Instructions
- Copy the folder with the files inside to /PSP/GAME/
- Get the Sony official 1.50 firmware below and copy it to the ADDON folder and rename it “150.PBP”
- Run the program from the PSP XMB and your done.
Download:
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Newsvine
January 16, 2008 at 12:16 am
I thought this site was all about the Slim. Some dumbass is going to try to install this.
January 16, 2008 at 12:43 am
how do i dawngrade my fat psp 3.80 to1.50
January 16, 2008 at 4:19 am
713tex is right. If it doesn’t apply to the slim we dont need it here. My first reaction until I read it thourghly was omfg we have 1.5 kernal on slim now! but no.
January 17, 2008 at 6:03 am
dd123<—– use a pandora’s battery thats the only way u can downgrade it and have it on a CFW
March 26, 2008 at 6:18 am
GOd sake!!i thought this site was only for slim psp’s…
with mix up fat psp’s??God sake…
February 20, 2009 at 12:23 am
hey 713tex i accidentally installed the 1.50 kernel on a slim and it works!!!! i can play mario and all that stuff on my slim its very wierd so i was just wondering how could this be possible
February 20, 2009 at 12:24 am
srry for double post but it doesnt work with other firmwares only this one how come?