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February 6, 2011 // 1:18 pm - On this Super Bowl Sunday Brandon Wilson has released PS3Jig v1.0, which is a PS3 Factory / Service Mode Jig Dongle downgrader for the Sony PSP handheld.

He has confirmed the PS3 downgrader / Service Mode Jig PSP port can be used for <= FW3.55 homebrew and works on 1001 5.50 GEN-D CFW. For those interested, IndyColtsFan84 has also made a PS3Jig Downgrade Tutorial for PS3 Firmware 3.50 and 3.55.

Download: PS3Jig v1.00 PS3 Factory / Service Mode Jig Dongle for Sony PSP / SVN

To quote from his page: PS3Jig is a homebrew program for the PSP that emulates the official Sony "jig" stick for entering Factory/Service mode. All you need to do is attach a USB cable between your PS3 and PSP, run the program, and turn on your PS3, just like any other downgrade/service mode method.


Keep in mind that I'm not a PSP developer, and that I know very little about homebrew for it; my ability to answer questions about how to run it and troubleshoot any issues is severely limited.

This application is open source and has no license attached to it, so you're free to do whatever you want with it; but please don't slap your name on it and call it your own, it's just rude.

Frequently Asked Questions

What's the main purpose of this?
To enter Factory/Service Mode on your PS3 using your PSP. This is typically used to downgrade your PS3's firmware version to something that supports homebrew/backups, or you can use it to unbrick some PS3s from a firmware flash gone bad.

Will this cause any permanent damage to my PSP?
Not that I know of, but don't blame me if it does.

Do I need a special cable for this?
No, you just need a standard A<->mini-B USB cable. Among many other uses, it's the cable used to charge/sync PS3 controllers. You have one of these.

What firmware version does my PS3 need to be on for this to work?
As of this writing, you need to be on firmware version 3.55 or earlier. DO NOT USE IT ON FIRMWARE VERSION 3.56 OR HIGHER UNTIL YOU READ OTHERWISE ELSEWHERE.

What firmware version does my PSP need to be on for this to work?
Honestly, I don't know. This requires kernel mode, so as of this writing (and to the best of my knowledge), version 6.35 or lower. It runs on my PSP-1001 5.50 GEN-D.

I get an error when I run it on the PSP! What's wrong?
I really don't know.

How do I get this on my PSP?
The same way you do with any other PSP homebrew. Do some reading and/or googling.

It didn't work! What's wrong?!
Try it multiple times. I have noticed through a hardware USB analyzer that sometimes the PSP doesn't send the jig challenge response correctly, despite the PSP saying it did.

Will this work on the PSP Slim? 2000? 3000?
I honestly don't know.

It locked up my PSP when I tried to exit! Why?
I honestly don't know. Pull the battery, re-insert it, and turn it back on.

What tools did you use to compile/build this?

What dongle ID does this use?
0xAAAA. It can easily be changed and re-compiled in the source. I didn't provide a UI for it because it's unlikely anyone will ever need to change it.

I thought you said this couldn't be done! And yet here it is, prick. What's with the lying?
I said you couldn't implement the PSGroove/PSJailbreak exploit on it, and that's still true. Emulating the Sony official jig stick for Factory/Service Mode is different, and the PSP can do it. I didn't see anyone else doing it, so I did.

PS3Jig v1.00 PS3 Factory / Service Mode Jig Dongle for Sony PSP

PS3Jig v1.00 PS3 Factory / Service Mode Jig Dongle for Sony PSP

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#171 - landon - February 4, 2012 // 10:42 am
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That is the problem, even if this could work on OFW 3.7+/4.00 & the PS3 go to the factory mode, you cannot get out from that mode !!! you'll need an E3-Flasher & an old dump. But if it's real & this work on new firmwares it will be a very very good progress.

SONY block using USB Dongles since the OFW 3.56 but who know may be it will work with the PSP or the PS-VITA (the day when we could launch unsigned code on it of course)

OK, it's clear now but tell us more about this test of syscall ?? what is your objectif ? what you want to do clearly ?

Thanks in advance nabnab

#170 - Nabnab - February 4, 2012 // 9:45 am
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If you take Test4.0 with a PSP, this don't put you into a service mode, it's simply a syscall that the PS3 answer...

actually it's more than that because on the firmware 4.0, i try something different and the firmware 4.0 recognize the USB device as a device know (not anymore unknown device)

#169 - rashid1996 - February 4, 2012 // 9:43 am
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okay everybody if i tried on 4.00 i will get stuck on factory/service mode?

and if i not get stuck how i can exit

#168 - Nabnab - February 4, 2012 // 9:39 am
Nabnab's Avatar
Ok i'm confuse, apparently when PS3news put the program of CrashSerious and mine together on the same thread, the PS3 users one of the program and have some problem.

Just to clarify, my program don't put you in a stuck service mode, you can ask to the people who tested with a PSP and PS3 4.0 etc...
My program don't put you in service mode ever, it's based on it only and with the source of the program PS3Jig to make something different

Crashserious = Factory Tool Program -> that put you into Factory Mode/Service Mode under the XMB (in software way) (you also need a USB Stick with the Lv2diag.self to get out from this mode)

Me = PS3 Jig testing purpose only work with a PSP for now-> that put you on nothing, it's just a test of syscall that can work on every PS3 and can lead a new way to exploit the PS3 (including retail to debug)

have 2 version, one compatible PS3 under 3.60+ and one compatible 4.0

Please Crashserious program and mine, it's not the same

Quote Originally Posted by CJPC View Post
No - this will not work for anyone past 3.55. Testing on 4.00 won't do a thing but get you stuck in service mode, unfortunately.

For the program of Crashserious Yes

For mine No

Actually you can't install Crashserious program on a Firmware 4.0
And mine don't put you into a service mode

It's just so confuse that PS3news put both program together.

#167 - FortyThieves - February 4, 2012 // 9:29 am
FortyThieves's Avatar
thanks a lot

Quote Originally Posted by mchartier105 View Post
I just tried this today and I didn't get stuck on Service Mode I'm on 4.00

you mind sharing your method?

#166 - catalinuxm - February 4, 2012 // 5:49 am
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So, my friends, this method is working or Not ??

#165 - Bartholomy - February 4, 2012 // 4:16 am
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Could be fun if a psp will give us the future hehe

#164 - hawkY - February 4, 2012 // 4:11 am
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Thank you man, we are with you and good luck !!

#163 - BigGC93 - February 4, 2012 // 3:47 am
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Nabnab, I think the problem was that I accidentally installed the Dex pkg, when I should have installed the Cex pkg on my retail PS3. Is there any way possible to get out of the FSM or am I stuck permanently?

#162 - teorouge - February 4, 2012 // 3:46 am
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As of now, how could you downgrade? E3 Flasher?