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September 1, 2012 // 5:05 pm - Following up on the PS3 Debug Firmware 4.20 and PS3 Test Firmware 1.01 & 1.02 updates, this weekend an anonymous user on the PlayStation 3 Developer Wiki has shared the Sony PS3 Debug / Test (DEX) Firmware 4.21 update for collectors.

Download: PS3 Debug / Test (DEX) Firmware 4.21 / PS3 DEX 4.21 VSH Dump by tjhooker73 / PS3 DEX 4.21 VSH.self to VSH.elf Decrypted by itskamel / PS3 LV1 4.21 DEX & LV1 4.31 CEX by Rancid-o

As always, keep in mind these PUP updates will currently NOT install on a retail PS3, and so they are intended for examination and comparison purposes only.

We have 100% confirmed that running this updater on a retail PS3 will not damage it, however, it will give the following error before the installation completes: The data type is not supported. (8002F029)

To quote: File changes compared to 4.20 - These files have changed since the previous version e.g. by new version string, bug/crash/exploit fixes, ...


File changes compared to 4.20 - these files have changed since the previous version e.g. by new version string, bug/crash/exploit fixes, ...

Core OS

  • emer_init.self
  • lv0
  • lv1.self
  • lv2_kernel.self



  • ps1_emu.self
  • ps1_netemu.self
  • ps1_newemu.self


  • ps2_emu.self


  • psp_emulator.self
  • psp_translator.self
  • release\PEmuCoreLib.sprx


  • libadec.sprx
  • libadec2.sprx
  • libadec_internal.sprx
  • libfiber.sprx
  • libhttp.sprx
  • liblv2coredump.sprx
  • libmedi.sprx
  • libsail.sprx
  • libsail_rec.sprx
  • libspurs_jq.sprx
  • libsre.sprx
  • libsync2.sprx
  • libvdec.sprx


  • sys_agent.self
  • sys_audio.self
  • sys_init_osd.self
  • sys_tsma.self


  • avc2_text_plugin.sprx
  • explore_category_friend.sprx
  • explore_plugin.sprx
  • explore_plugin_np.sprx
  • friendim_plugin.sprx
  • friendml_plugin.sprx
  • friendtrophy_plugin.sprx
  • hknw_plugin.sprx
  • libvideoSubsystem.sprx
  • msmw2.sprx
  • profile_plugin.sprx
  • rec_plugin.sprx
  • videodownloader_plugin.sprx
  • vsh.self
  • x3_mdimp10.sprx

PUP Hashes

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Pup Information

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Finally, in related news below is a PS3 Restore Utility Backup / Restore DEX Console Guide (via

After making the conversion of the PS3 console from retail (CEX) in debug (DEX), some may have noticed the lack of utility of backup / restore (accessible from Settings -> System Settings -> Backup Utility) that allowed you to save all content (accounts, photos, music, games, etc. with the exception of trophies) on external media to back recovery in case of failure / change of the internal hard disk.

Therefore PS3ITA, thanks to our mythical Rancid-o, provides a simple method to restore such function by means of easily installable file pkg.

We found a way to restore Backup Utility in DEX:

Just install and start this pkg:

There is also a pkg for uninstall:

This is because if the option backup utility does not uninstall many options are not displayed in "debug settings". Oh I forgot has only been tested on cfw 3.55 DEX.

Sony PS3 Debug / Test (DEX) Firmware 4.21 Update Surfaces

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#244 - ratboy112 - December 1, 2012 // 7:55 am
ratboy112's Avatar
Whenever I try to update to (4.25) I get: An error has occured (8002F827)

I already tried the mirror, gives the same message. Can anyone help me out?

I am on 4.21 DEX right now and wanted to update to 4.25 DEX. I already tried to update from 3.50 and 4.20. Also didn't work

#243 - G Sus - November 13, 2012 // 5:50 pm
G Sus's Avatar
Thanks for that tip, luckily both ps3s already on multiman 04.11.11

I ain't got round to installing it yet. i aint actually turned any of my ps3s on all day. been more interested in seeing if many bans happen over the next 24 hours. (bought a mini model helicopter and i've been playing really i'm only 40)

Also below is a Black Ops 2 - BLES01717 DEX fix 1.02 from beanbaggins stating the following:


I won't try the new DEX CFW yet so I can't confirm that this works online, but it should. I have tested Campaign mode and Zombies first level, and both are working fine on my end.

Also here is a Hitman Absolution Dex patch, tested and working from kittoo:


#242 - inflate76 - November 13, 2012 // 5:45 pm
inflate76's Avatar
Ps multiman 4.10.00 or newest version only work proprrly. Upgrade to base or full 4.10 if you use other mm ps3 reboot in red light led

#241 - NTA - November 13, 2012 // 5:30 pm
NTA's Avatar
I somewhat agree, but I think the next big thing would be that hard to find exploit for the higher ofw users

#240 - Brian10122 - November 13, 2012 // 3:53 pm
Brian10122's Avatar
Well, I'm stupid - I thought it had something to do with Vita. Otherwise this really isn't too exciting. I guess we've already gotten the "next big thing" anyways.

#239 - GotNoUsername - November 13, 2012 // 3:18 pm
GotNoUsername's Avatar
Hi Guys,

Ca someone put that sentence into other words : "IMPORTANT: If you are on ofw debug than 4.21 (type 4.25) must strictly pass before the fw Downgrader DEX"

I don't get it ? Thx for you Help

#238 - G Sus - November 13, 2012 // 11:22 am
G Sus's Avatar
i don't need the change idps really cos its never going to be connected to internet. most its gonna get is connected to a pc through a router. and il make sure that router has no net access.

i've no idea why i struggle with those ilivid sites, but after the 6th attempt it gave me the right file finally.. always best to have it anyway

When the Change_IDPS is functioning properly, the LED will switch on the console from the usual green color to YELLOW

that sounds scarey, i really don't like my ps3 having yellow lights.

#237 - elser1 - November 13, 2012 // 11:10 am
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#236 - G Sus - November 13, 2012 // 11:08 am
G Sus's Avatar
lol thanks loads, much appreciated.

can't get the change idps just keep getting the ilivid file. not important though.

#235 - PS4 News - November 13, 2012 // 11:00 am
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It's in the main post, for the lazy... Password: gintonic