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January 15, 2013 // 4:14 am - Following up on his PSN / SEN Enabler and Disabler v4.31, PlayStation 3 homebrew developer Nathan_r32_69 (aka nathanr3269) has released a PS3 PUP's Syscon Changer v1.0 followed by v1.1, v1.2 and v2.0 for those interested with details below.

Download: PS3 PUP's Syscon Changer v1.0 / PS3 PUP's Syscon Changer v1.1 (x86) / PS3 PUP's Syscon Changer v1.1 (x64) / PS3 PUP's Syscon Changer v1.2 (x86) / PS3 PUP's Syscon Changer v1.2 (x64) / PS3 PUP Syscon Changer [v2.0].rar

To quote: Hi friends, i'm here again with a new tool to make it easy another task, this time to change PUP's syscon, for for example, install a lower PUP on higher firmware, like Downgrader PUPs does


Its to easy to use, only chose your PUP file, select syscon version and click on "Start", if all goes fine you will have a new file named "NEW-PS3UPDAT.PUP"

Hope you will find this tool useful and contact me if you see any issue, meanwhile i'll back to finish SEN Enabler v5.0 and other research

Finally, from Cyberskunk: Basically this changes the firmware version in the info0 of the CORE_OS_PACKAGE.pkg so the PS3 thinks you are installing a higher CoreOS.. Same way the '999' Downgrader works.. And NO.. It will never downgrade 3.56+ OFW.. Ever!!

To do do this you would need to exploit the OFW and try to stop it from checking the spkg_hdr.1 files or return success (if you had an exploit like this you could do a hell of a lot more than just installing firmware)

OR Some disgruntled employee at Sony would need to leak the private key for spkg_hdr.1 files. This private key can no longer be calc'd and it is not, never has been nor will ever be in the firmware. Sorry to burst any bubbles of people thinking it will happen sometime soon..

v1.1 Changelog:

  • New version v1.1 released: PUP file must be where you unpack the program
  • Fixed some issues while unpackin Core_OS and creating spkg files, must work fine now

v1.2 Changelog:

  • Improved code
  • Fixed all previous bugs
  • Added executable to install the variable of the keys

v2.0 Changelog:

  • Updated code
  • Updated tools
  • Fixed some bugs
  • Keys Installer embedded
  • Added option to change PUP's Image version


PS3's PUP Syscon Changer [aka PPSC] was developed long time ago from a request because someone was stuck on Recovery and was unable to install any CFW, with this he could fix it and then was released to everybody.

This tool changes PUP Syscon value to a higher-lower one (higher recommended), you can choose it, and then install it from Recovery Menu. A quick example of this tool is that you can install CFW 3.55 PUP on CFW 4.XX after patching it, other example is for make a DOWNGRADER PUP.


Is simple, follow this steps:

  • Select PUP on Open button (...)
  • Select Syscon value (From 0.00 to 9.99)
  • Select Image version (From 00000 to 99999) (if you want to use Image version from PUP, don't change this)
  • Press Start
  • Wait until is finished

If all goes fine you will have a file named NEW-PS3UPDAT.PUP, rename it to PS3UPDAT.PUP and copy it to a USB device and install on PS3 from Recovery Menu.

Remember, this is ONLY FOR CFW AND NOT FOR OFW, this can't make install CFW on OFW 3.56+

As always if you find any issue please let me know.


PS3 PUP's Syscon Changer v1.0 by Evilnat is Now Available

PS3 PUP's Syscon Changer v1.0 by Evilnat is Now Available

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#238 - crash251 - October 20, 2014 // 11:25 am
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lol nice

#237 - dara jihan - October 20, 2014 // 11:19 am
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can change mac address?

#236 - modz4fun420 - December 21, 2013 // 10:03 pm
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I can't wait for dex

#235 - SivokX - December 18, 2013 // 1:22 pm
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When i uninstall it says that data is corrupted and after data reconfiguration the spoof continue installed. What can I do to remove it?

Please help me!!!

#234 - drphuz - October 6, 2013 // 2:23 am
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yo thekron. grab a copy of Rebug 3.55.4 and flatz dumpers, and altos c2d. you can be on REBUG cex/dex in 30 mins.

update to 4.41 REBUG drex.

enjoy that

#233 - larker - October 3, 2013 // 2:54 am
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Quote Originally Posted by skyo78 View Post
Why are people still on 3.55 CFW? Any benefits?

because it's safe... if you made as stable version as 3.55 then people should move forward... i am thinking onto move on Rogero 4.40 but i find people are coming back to 3.55 why is that?? mean if 4.40 is working fine with all games then why bother coming back?

#232 - thekeron - September 28, 2013 // 7:18 am
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Nope get an xmb error when trying to get to a 4.xx cfw i have a slim ps3 thats on kmeaw so i gave up. if you can help me get on a better cfw than help me den i'm trying to get on dex an ps my ps3 was downgraded so i tried all of dat qa flag condor updater nun of that crap works

#231 - drphuz - September 27, 2013 // 9:42 am
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Look how many people still refuse to come off of 3.41 case closed, lol

#230 - dyceast - September 27, 2013 // 7:08 am
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I can only think:

Scared to do the upgrade (scared to brick)
Lazy to update Games and PSN games if patched for 3.55

Besides that I see no benefits.

#229 - skyo78 - September 27, 2013 // 6:44 am
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Why are people still on 3.55 CFW? Any benefits?