New Slim PSP Downgrade

Vic Vinegar · 21-09-2007 6:42pm #1

Hey folks, i bought a PSP on a whim recently. It's one of those new fangled slim ones. Does anyone know of anyone who'll do a firmware downgrade for me? i ask cos i don't know anyone who has a psp! sad i know....

Vic Vinegar · 25-09-2007 12:17pm

Sorted, i'm gonna buy another for the Girlfriend and do it with the pandora battery

animaX · 25-09-2007 4:51pm

Its not that simple you know!! First of all, make sure to buy her on old psp (not slim). Then you'll have to get custom firmware running on the old psp. Only then can you make a pandora battery for the slim.

Check out psp-hacks or maxconsole for info

Vic Vinegar · 25-09-2007 9:15pm

Yeah i know, i'm getting a fat one (from a guy on adverts.ie) i've been doing some reading up on how to do it. Should be complicated fun

thanks for the maxconsole link, will be handy!

animaX · 26-09-2007 1:22pm

Cool, no problem. Ask back here if you need any more help. I managed to do the job myself last week. Works like a charm!

Also, make sure to use the guide written by lounger over at maxconsole. Thats the best guide out there

Vic Vinegar · 26-09-2007 3:06pm

Cool man, i just did the fat psp (2.0 to 1.5) gonna follow that guide now to do my slim. Cheers!

Vic Vinegar · 27-09-2007 8:35pm

Did it anyway, it would've probably helped if the instructions were in less of a gibberish format but i got there in the end! nice

animaX · 28-09-2007 10:39am

Yeah, the english isnt great! Glad it worked out for you.
You should also upgrade the slim to 3.71M33. Its a much easier process. You just need to download the 3.71 eboot, rename it to 371.pbp and put it with the files in the download. Then you just run from the game menu.
The good thing about this one is that it allows developers to use the extra 32mb of ram in the slim! So, theoretically, new and improved emulation is possible

Nick_oliveri · 28-09-2007 4:12pm

Emulation of what exactly. I know it will give moar options like running homebrew in the XMB (is this on 3.71 phat?) but if it could emulate the PS1 properly two years ago then it can theoretically emulate all underling consoles perfectly without the extra RAM. (N64 etc.)

animaX · 28-09-2007 6:10pm

Nick_oliveri wrote:

Emulation of what exactly. I know it will give moar options like running homebrew in the XMB (is this on 3.71 phat?) but if it could emulate the PS1 properly two years ago then it can theoretically emulate all underling consoles perfectly without the extra RAM. (N64 etc.)

Homebrew is already running from the xmb on the slim. I'm talking about slim here not fat. 3.71 for fat is currently missing the 1.5 kernel subset. The extra ram will no doubt improve N64 emulation. Have a look at strmnnrmn's blogspot and you'll see how much of a battle he has had squeezing everything he can from 32mb of ram.
Yeah, everything around the ps1 era is possible with 32mb if you are sony and are paying a team of 50 coders 50,000 a year!! For homebrew coders, any extra ram will make life much easier.

Vic Vinegar · 30-09-2007 1:38am

animaX wrote:

You should also upgrade the slim to 3.71M33.

Is it worth it then? any other improvements/things i should know about?

animaX · 30-09-2007 11:25am

mountain lips wrote:

Is it worth it then? any other improvements/things i should know about?

Well, its really easy so there's no reason not to! It doesnt involve the whole pandora thing. Also, 3.71M33 allows developers to use the extra 32mb or ram on the slim (3.60M33 doesnt allow this).
Just today there has been a new released of the capcom play system 2 emulator that uses the extra ram.

Vic Vinegar · 30-09-2007 12:27pm

animaX wrote:

Well, its really easy so there's no reason not to! It doesnt involve the whole pandora thing. Also, 3.71M33 allows developers to use the extra 32mb or ram on the slim (3.60M33 doesnt allow this).
Just today there has been a new released of the capcom play system 2 emulator that uses the extra ram.

Right, i got 3.71, the instructions are weird yet again! - "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""

EH? i don't wanna bodge it up, could you clarify for me please?

animaX · 30-09-2007 1:44pm

Ok. Download the official 3.71 update (psp-hacks maybe). Extract it somewhere onto your computer. The file will be called eboot.pbp and its around 20mb. Rename it to 371.pbp

Now download the 3.71M33 update package (again, psp-hacks). Extract it to your computer. It will contain a folder called UPDATE. Inside there will be an eboot.pbp and a few prx files. Place the 371.pbp file into this UPDATE folder.

Then put the UPDATE folder into the GAME folder on the psp. Eject the psp, go to game menu and launch. Remember that this update will look exactly like an official update but it isnt!

Hope it works out for you!

Nick_oliveri · 30-09-2007 2:29pm

animaX...got PSP slim?? I dont know fcuk all when it comes to teh slim.

animaX · 30-09-2007 3:18pm

Yeah man, got it on launch day! I had a psp fat, sold it a few months ago so that i could get the slim. Its pretty much the same as the fat in terms of homebrew exept for a tricky initial custom firmware installation (requires pandora).

You should check it out!

Nick_oliveri · 30-09-2007 3:31pm

Nahh as soon as i found out you were going blind (no gui,when the 3.60 m33 first came out) while using pandora it kinda put me off. Is the screen much clearer with the slim? Heard it was like two times better.

Vic Vinegar · 30-09-2007 6:04pm

I don't think there's any difference with the screen really... unless i'm missing something. It does have twice the ram though!

animaX · 30-09-2007 8:38pm

No, i havent noticed any difference with the screen. Its not as big a revamp as the DS lite was to the old DS.

Nick_oliveri · 01-10-2007 10:56pm

Bah... someone told me it was much clearer than the phat.

Re: teh RAM thing and emulators.

pspupdates.qj.net wrote:

The next question now is whether Daedalus (if it did make it to the Slim) would take advantage of the Slim's additional 32MiB RAM. StrmnNrmn explains that it won't necessarily give faster emulation speeds, but it can benefit in two other areas: texture cache and ROM cache. The important thing though is:

So in summary, yes, I will support the PSP Slim and Lite at some point, but no, it's unlikely to offer much of an improvement over the PSP-1000s (other than being slimmer and lighter, obviously

animaX · 02-10-2007 11:03am

Yeah, i must say i am disappointed with strmnNrmn's initial impression but maybe it will change when he actually gets a slim!!
Thankfully, NJ's emulators have made better use of the ram. He has now released slim compatible versions of all his emu's (CPS1/2, Neo Geo, Neo Geo CD) which eliminate the need for cache files on the memstick (in most games). And i hope to god he attempts a CPS3 emulator!! Then the psp would be the best piece of hardware ever made!!

Vic Vinegar · 02-10-2007 1:00pm

That's upgraded to 3.71 now animaX, cheers for the help.

animaX · 02-10-2007 2:55pm

No problem mate. Try out the CPS2 emulator. Its amazing!

Nick_oliveri · 02-10-2007 4:30pm

animaX wrote:

Yeah, i must say i am disappointed with strmnNrmn's initial impression but maybe it will change when he actually gets a slim!!

I think if you could make the N64 emu on the slim from scratch it would be better. Glad to see some are taking advantage of the hardware. I wonder will games start to go slim compatible only like the analogue and dual shock farce on the PS1. Time will only tell.

animaX · 03-10-2007 10:57am

Nick_oliveri wrote:

I wonder will games start to go slim compatible only like the analogue and dual shock farce on the PS1. Time will only tell.

I hope not, I have a psp fat for my younger brother!

Vic Vinegar · 03-10-2007 4:07pm

animaX wrote:

No problem mate. Try out the CPS2 emulator. Its amazing!

I will surely, which one though? there seems to be a few!

animaX · 03-10-2007 4:25pm

Go to pspupdates and scroll down over on the right there are links to every emulator on the psp. Click on cps2 and go with the latest one.

New Slim PSP Downgrade

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