Now, I would recommand peeps to upgrade to 5.00. Kudos to Dax once again.

Dam it, I recently deleted 3.71 update….DAMN IT!!!

Does this work with both the PSP 1000 and 2000 models?

I just bricked installing this btw…

how do ppl brick so much?…i havent bricked since 2.00 to 1.50 downgrader!

from where i can copy fatmsmod.prx to the root of the memory stick…

Well i semi-bricked my phat with that, but recovery or hellcats didnt work so i just used my pandora ha….. im pdating to 5.00 m33 right now, i think was the fatmsmod.prx cuz i found ine in the internet it weighed 90k, i just did it by myself thui time and this weighs 186kb ill try again ill report the results

whats the difference. ive installd and am using it but i dont notice any difference

What does this Fatsmod do?

how do i use psardumper to decrypt the 3.71
never used it before

thanks :)

i thought mine bricked. my psp works with ms out though. weird. any thoughts why?

I don’t know where you get 186 kb from for the size of “fatmsmod.prx” but I’ve used this before to fix firmwares 3.80 and 3.90 for other people and I still have the “fatmsmod.prx” file I dumped several months ago its size is.

94.1 KB (96,432 bytes)

This is the reason I’m still running 3.71 m33 [4]. It is very stable and there are only like one or two games that want run on it.

tested and working!

yeah it worked!!!!! the 186k FAtMSMOD.prx did the job

I just did a test my slim without FAtMSMOD patch vs my phat with FAtMSMOD patch….

My phat won I used the Simpson game for the test

I made a video so yall can see theres a big difference with load times
Idid phat with 3.71 fatmsmod vs a Slim

http://www.youtube.com/watch?v=A78VRE2EPaE

Enjoy!!

can someone upload the prx please?

this work with new psp 3000

Yo wassup everybody this question is a bit dumb but what does this fatmsmod.prx do anyways?? and why is it so important

Here u can download 3.71 fatmsmod.prx:

http://rapidshare.com/files/157184085/fatmsmod_prx_371.rar

Enjoy!

:< ~ 371 fail to work with Japanese file name :<
got 0 Tracks in my folders T^T

is there a fix ~ or is it possible to mod the 500 one with faster loading?

ok I have both 3.71 and 5.00 fatmsmod

I put 3.71 in e:) and run the eboot that need it, it said done, I can’t find a diffrent in the recovery there nothing new, but mit be Going down the list of game150 in the psp mit be going faster?

also in the real flash 0 the fatmsmod is still the size of 5.00 SO i think nothing change.

can someone make a youtube moive on how to make this work

wtf?! ive never used this mod before and it installed flawlessley. how are people bricking? wrong cfw maybe? lol

heres a noob question. if i format my mem stick will i have to apply this patch again or is it safe to delete these files off my stick after installing

I know, I tried to install a cintro almost half a year ago and it bricked. All the other installs, CFW updates etc., are all relatively safe.

nope using the 94.1 KB version which is encrypted is file that bricks the psp

worked just fine for me.

I had forgotten that there was two ways to dump encrypted and decrypted. And I had no idea that it required the the decrypted version.

BTW that rapid share link is illegal and will probably be deleted. It’s illegal to distribute Sony’s firmware that way.

Get it while it’s hot!

Tested on CFW 4.01 M33-2…. Works!

I’ve noticed there is a “HUGE” difference between Normal & Patched.

benefit:
-Faster loading ( r/w memory )
-If use CSO, just lag a little bit, not lagging awfully (before patched).

tested game:
-NFS Pro CSO
-God Of War CSO
-Valhalla Knights 2 CSO
-Disgaea CSO
( All get faster loading time! )

This is a must have patch if you use CFW above 3.71

How dare you pirate god of war!!!!! j/k I love all the god of war games though :P

This worked great for me too. Haven’t seen about the japanese filenames though.

I bricked my PSP Fat with the 94k 3.71 fatmsmod.prx.

I tried the replacing the 94k fatmsmod.prx with the 186k file (CRC 7f256ad2)found on the link above from the recovery menu on the PSP on the KD folder and I still can’t unbrick it.

I also renamed the fatmsmod.prx 186k file to fm371.prx and replaced the one that was there, and still no luck.

Can anyone tell me what else I need to do in order to make my PSP Fat boot back to normal? I only have one PSP console, don’t know of anyone else who might lend me theirs to unbrick mine.

Could anyone post a link to a site where the original files from firmware 5.0 that were replaced by this patch?

and fw 5.00 any good? not sure about upgrading

This should help found this on another forum:

I have a little problem concerning the FatmsMod in 5.00 M33-3. I extracted “fatmsmod.prx” from the official 3.71 firmware, moved it to the root of my memory stick, ran the patch normally from the XMB, it went just fine, then my PSP rebooted itself and now it won’t run at all. I turn it on, the power light turns on, screen stays off and it turns off by itself after a few seconds. I can get to the recovery menu though, holding the R trigger when turning on my PSP, however I cannot execute GAME/RECOVERY/EBOOT.PBP, the screen goes blank and my PSP turns off again after a few seconds. It looks like I’m screwed, the “fatmsmod.prx” was probably corrupted, I don’t know, but now it looks like I can’t read anything from my memstick, what should I do? What CAN I do? Please help me :(

——————————–

EDIT:

Citar:
For all the ppl who semi-bricked their psps
Recovery doesnt work not even using Hellcats recovery,
Just use ur pandora if u have if u dont shame on you :oops:

I think the culprit is if you use fatmsmod.prx with a size of 94.1 KB (96,432 bytes) which is
encrypted/compressed.

The one that worked for me was the fatmsmod.prx with 186kb unencrypted

I think D_A should block the use of the encrypted version…

Anyone can confirm this, cuz i bricked mine using the 94.1 KB file.

Crap, I did use the encrypted version… great, now I’m fucked because I don’t have a pandora battery. Why the hell does it even start patching with the smaller fatmsmod.prx? It does say it works with decrypted AND encrypted (unsigned) one. God damn.

——————————–

EDIT2:

Citar:
Download the decrypted fatfsmod.prx 186kb from somewhere (think someone has posted it in this thread) and Toggle Flash0 from recovery. Rename the fatfsmod.prx to fm371.prx and paste it in the kd folder overwriting the old one.

Thank you so much Torch, this actually worked. However when I confirmed “toggle flash0″, Windows came up with some kinda error (using Vista 64bit), and I couldn’t see the “kd” folder in Explorer, but when I tried to create one, it said there already is a folder by that name… So I renamed the 186kb fatfsmod.prx to fm371.prx, moved it into a folder “kd” I created on my desktop, and then moved the whole folder to flash0 and when it asked me if I want to merge folders I clicked yes, then it asked me if I want to overwrite the fm371.prx, I clicked yes once again…

And now it works again, sweet! You’re my hero.

M33 always ^^

for my understanding those drivers are for iso/cso img ~ it shoudn’t be affect XMB Music functions

What is the memory stick driver for exactly?

Ok where do i put the PSAR Dumper because whenever i try to run it it just says This program requires 2.71 or higher and after a while it just goes back to the XMB

So you can access recovery menu? If you can, get Hellcat’s recovery flasher. With that, you can re-flash 5.00 from recovery.

Hellcat’s recovery flasher is an absolute must have if you don’t have a Pandora. I don’t know why everyone doesn’t use it, honestly.

The most noticeable effect is in XMB loading speed.

Ok where do i put the PSAR Dumper because whenever i try to run it it just says This program requires 2.71 or higher and after a while it just goes back to the XMB HELP!!!!

this stops CFE 2.2 from working. no reason for me to keep it.

Can someone please tell me where or how I can get fatmsmod.prx the 186kb. please i cant find it anywhere.

OMG i am hearing so many varieties on how to do this. can someone please write the steps on how to actually do this the correct and final way without bricking or causing problems? Thx.

I tried renaming the fatfsmod.prx
from the KD folder from flash 0 file to fm371.prx, it didn’t solved the problem.

The Recovery option doesn’t work either.

Any other ideas that DO work?

Yes

Guide:
1. Download all 3 file links from psp-hacks links above.

3. Place 3.71 update (named EBOOT.PBP) into the root of the memory stick.

5. Start up PSP; run new psardumper from GAMES, use [] (Square) button to decrypt all.

6. USB connect to pc, open the folder ‘F0′ in your root memory and find ‘fatmsmod.prx’. Copy to root of your memory stick.

7. Put the fatmsmod patcher into your “PSP/GAME” folder then run it.

**Note**
-Don’t use the encrypted fatmsmod.prx 95kb but instead use the 185kb decrypted one.
-vshmenu.prx and cfe.prx (custom firware extender v2.2) may not work after patch
-Playstation Network may not work after patch

Questions:
1. Format there whole MS for patch use?
2. Need to set to M33 driver instead of Sony N9660?
3. Possible to patch or unpatch back to the fatmsmod 5.00?

Men. actualicé mi PSP2000 en la pagina oficial de Play Station, mi versión es la 5.01 y ya no sirve nínguno de tus programas. estoy frito. no se que hacer. no puedo ejecutar juegos desde la memoria. cometí un error. puedes ayudarme? PLEASE

This is a lifesaver! I got an 8gig sony memory stick and it worked fine until I was running dgen 1.70 lite on 5.00m33-3 and it would randomly turn off like it was bricked and it wouldn’t turn on with the memory stick in. So I turned it on without and it was normal (phew) and then put the stick in and it would say free space: 0 Kb when I had about 4000mbs left of space and if put into usb mode it wouldn’t show up as a drive. It would always work after a while of in and out in and out until finally it pooped out on me and would read or write whatsoever. and I decided it was a necessity and when it finally worked itself out, I spent no wasted time before installing fatmsmod for 5.00 and it works flawlessly now, faster loads and no freezing. Only Problem I have now is that 3800 Mb of space magically disappeared even when the memory stick is formated…

Works great on my slim AND my phat.

hi guys..
hope u still check this site.
i hav fat psp.
i’m gettin an error ‘The game could not be started (80000108)’ wen i run d fatsmod patcher from games…
kindly help…

hey i have cfw 5.00 M33-4(fat) and when i play ( dissidia : final fantasy ) it stays on a white screen later on the game —->>> will this patch help me fix the problem ?

This works with 5.02GEN-A!!! Im using http://rapidshare.com/files/157184085/fatmsmod_prx_371.rar and http://www.psp-hacks.com/file/1589

Hey,
I have a question. Does this method works on a briked firmware 3.80?
I hope its not too nooby of a question :)
Thank you.

OK, so I have been out of the PSP loop for a year or so and I just upgraded from 3.71m33 to 5.00m33-4. NOW… I upgraded only cause my ISO games would not let me play on line. However I saw this and thought I might need this for older programs. I installed it like everyone has said but one question…. Where can i check if it installed cause it said it did but the firmware is still 5.00 and in recovery there no 3.71?

Hi, I upgraded from 3.71 M33 to 5.00 M33-6 and i had a save game from Macross Ace Frontier when i was on 3.71 M33 and now when i try to load that save file it throws the error that the save file is corrupt but all my other psp saves are fine, is there any way to get them to work on the new firmware or am i doomed and have to start again?

I have 16Gb memory stick but for the iso game I can use only 4Gb is it possible to expand that space ?

Ok… I am a schooled modder. I Haven’t gotten the full picture of what FatMSmod does… from my research and whats been posted here it is for a lag in the XMB that occurs in the 5.00M33-x CFW. Ok… I get that… Why do I need it? Here’s where I am and mabey someone could help me. I am using a fat cfw 5.00m33-6 (should be on 5.00m33-5) I have a CSO that won’t run… I know leave the CSO’s alone and only use ISO’s… let’s step back and work with it. Tested in slim on (same card and same CFW w/no changes) works fine. On fat no good. (80020148) error. All other CSO and ISO files work fine. So I take it that my fat is the issue. A hardware differance is the thing we are dealing with. K. Well then I am in research at a dead end. You tell me 1.50 kernal add on for 5.00m33. Not the fix. Then here I am in FatMSmod… not the fix. Well what would you say is the fix? Where am I going wrong? I know that I applied these fixes perfectly… any one have any thoughts?

hey…can i ask how to make the low memory of a psp to a higher one…bcoz i bought a 1 gb memmory stick last week and i didn’t notice that it is only 1 gb…so i’m wondering if u can help me….thnx..just e-mail me if u have found out why..here’s my e-mail add chuajohnmark@rocketmail.com…..thanks…^_^

ei.., is that safe to install?… im not really sure if i do mistake it will damage my memory stick…

can anyone tell if there is nothing wrong and safe to use?

So this is a dumb Q and all, but oh well. If you psp is not hackable and you use this to hack it? Or if it is unhackable (its a 2000 series I dont have the motherboard info with me) can you brick it on purpose and then use Hellcat’s recovery to unbrick/intall cfw?

holy god I cant do it I need help. if someone knows how to do dis e-mail me at 5-elements@live.com

My psp has custom firmware, the iso games work. but when i press select/home on the xmb menu, no scepial screen pops up (ie–i do not have the built in umd dumper). i have version 3.90 m3.3. if i upgrade to version 5.00m3.3, will my psp have all the same features?

I did it!
i have psp 2000 (slim) with 5.00 m33-6 and i sucsefully did it!

Just follow this gudi by Leechy:

Guide:
1. Download all 3 file links from psp-hacks links above.

3. Place 3.71 update (named EBOOT.PBP) into the root of the memory stick.

5. Start up PSP; run new psardumper from GAMES, use [] (Square) button to decrypt all.

6. USB connect to pc, open the folder ‘F0′ in your root memory and find ‘fatmsmod.prx’. Copy to root of your memory stick.

7. Put the fatmsmod patcher into your “PSP/GAME” folder then run it.

sry for my bad english but im from Greece.

e-mail contact: jrex6@yahoo.gr