If I upgrade my PSP to the latest firmware...

benol · Post by **benol** » Sat Sep 29, 2007 12:18 am

...is there a chance that it will be downgradeable one day? Just wondering.

benol · Post by **benol** » Sat Sep 29, 2007 12:49 am

New question. What firmware other than 1.5 can run homebrew best? 1.5 won't install on my PSP, even through recovery mode. The screen just goes black.

teraflop122 · Post by **teraflop122** » Sat Sep 29, 2007 7:00 am

Every PSP phat can be downgraded, regardless of the firmware, thanks to the Pandora Battery. I'm pretty sure the situation is the same with the PSP Slim.

1.5 is the juggernaut of homebrew gaming right now. Virtually everything out there is for 1.5, because it can easily be made to run unsigned code. Firmware 1.5 will install on any PSP phat provided you do it correctly, but not PSP slims. Thanks to the PSP Slim, most new homebrew will be made to run on the 2.5 kernel. 2.5 by itself, official from Sony, won't run homebrew games unless you have an unpatched copy of GTA LCS.

Harshboy · Post by **Harshboy** » Sat Sep 29, 2007 7:19 am

PSP Can be Downgraded from any Firmware by Pandora
PSP Slim Can be Downgraded from any Firmware by Pandora
PSP Slim can not run 1.5 Firmware, Install 3.71 M33
PSP (Normal, fat) should use the 3.71 M33 Firmware and the 1.5 Kernel Extender.

All PSPs can be downgraded and you don't need 1.5, get a Custom Firmware. Honestly atm I recommend 3.52 M33-4

soundwave · Post by **soundwave** » Sat Sep 29, 2007 8:15 am

I have 3.52 M33-4, and PSX games won't run, I haven't looked into it, and at the moment I don't really care, but has anyone else experienced this? Of the three PSX games I have (Threads of Fate, FFVIII&IX) they all come up with "cannot run game" or whatever it is, followed by some hex code.

Harshboy · Post by **Harshboy** » Sat Sep 29, 2007 8:25 am

soundwave wrote:I have 3.52 M33-4, and PSX games won't run, I haven't looked into it, and at the moment I don't really care, but has anyone else experienced this? Of the three PSX games I have (Threads of Fate, FFVIII&IX) they all come up with "cannot run game" or whatever it is, followed by some hex code.

Do you have a custom Theme? Also, what Pops version were the games made for? You may need the popsloader plugin

blackbox_dev · Post by **blackbox_dev** » Sat Sep 29, 2007 9:58 am

Use CFW 3.71 M33. It's the latest Sony firmware but is able to run 1.5 code.

(in a nutshell)

-iam7805

Valium · Post by **Valium** » Sat Sep 29, 2007 11:55 am

I still use 3.40 OE-A, I had a lot of errors with the M33's, and at the time, there was hardly any documentation on how to fix it.