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Rebug 4.30.1, Rebug 4.21.2 / 3.55.4 PS3 CFW REX Editions Arrive

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81w ago - Following up on their previous update, today PlayStation 3 hackers Cyberskunk and evilsperm of Team Rebug have released Rebug 4.30.1, Rebug 4.21.2 REX Edition, Rebug 3.55.4 REX Edition and updated the 999 Downgrader with details below.

Download: Rebug 4.30.1 Standard (scmods.com/rebug/firmware/REBUG_4.30.1_PS3UPDAT.PUP) / Rebug 4.21.2 REX Edition (scmods.com/rebug/firmware/REBUG_4.21.2_REX_PS3UPDAT.PUP) / Rebug 3.55.4 REX Edition (scmods.com/rebug/firmware/REBUG_3.55.4_REX_PS3UPDAT.PUP) / 999 Downgrader (scmods.com/rebug/firmware/REBUG_3.55.4_REX_PS3UPDAT.PUP)


MD5 Hashes:

  • REBUG_4.30.1_PS3UPDAT.PUP - 88866cd069da39053c6a1694ecaabc32
  • REBUG_4.21.2_REX_PS3UPDAT.PUP - 41e43ff7d0286b2f318ca6f56227a492
  • REBUG_3.55.4_REX_PS3UPDAT.PUP - 46541c4f97604068c05e363412478df5
  • REBUG_3.55.4_999_DGR_PS3UPDAT.PUP - 06aa0e07af7ead6e7e4bddf18ea3281f

For those curious, 4.30.1 does not have the DEX kernel and all of them can play PS2 PSN titles now.. There was a bug in the first REX releases. You can also install 4.21.2 over 4.30.1 straight from XMB if you are QA flagged. Cyberskunk has also implemented OOS support for all Rebug Firmware including 4.30 so enjoy Linux again


  • REBUG 4.30.1 STANDARD - JAN. 3RD 2013 - FIRST RELEASE - See below for full feature list
  • REBUG 4.21.2 REX EDITION - JAN. 3RD 2013 - FIXED - PS2 Classic and PS2 PSN Titles now work - PATCHED - LV1: Undocumented function 114 - PATCHED - LV1: Skip all ACL Checks
  • REBUG 3.55.4 REX EDITION - JAN. 3RD 2013 - FIXED - PS2 Classic and PS2 PSN Titles now work - PATCHED - LV1: Skip all ACL Checks
  • '999′ DOWNGRADER - JAN. 3RD 2013 - FIXED - PS2 Classic and PS2 PSN Titles now work - PATCHED - LV1: Skip all ACL Checks


  • FEATURE - Dual LV2 Kernels CEX/DEX (Swap your EID0/LV2 kernel using Rebug Toolbox in seconds)
  • FEATURE - ALL Retail functions available in CEX mode (No need to install different firmware)
  • FEATURE - ALL Debug functions available in DEX mode (No need to install different firmware)
  • FEATURE - ProDG Connectivity in DEX mode


  • FEATURE - QA Token compatibility
  • FEATURE - OtherOS++ support enabled (Use Rebug Toolbox to Boot OtherOS with different LV1 patches)
  • FEATURE - 4.31 Version Spoof files (PSN/SEN Enabled for REBUG 4.21.1 and higher)
  • FEATURE - Package Manager (Replacement for the standard 'Install Package Files' option)
  • UPDATED - Rebug Toolbox 02.01.00
  • PATCHED - LV1: Disable System Integrity Check (Safe to use with mismatched COREOS/SYSCON versions or if PS3 is not QA enabled)
  • PATCHED - LV1: Undocumented function 114 (Allow mapping of protected memory)
  • PATCHED - LV1: Skip all ACL Checks (Needed to allow booting of OtherOS)
  • PATCHED - LV1: Peek and Poke support (Unused LV1 call 182 and 183)
  • PATCHED - LV2: Peek and Poke support (LV2 Syscall 6 and 7)
  • PATCHED - LV2: Peek and Poke support for LV1 (LV2 Syscall 8 and 9)
  • PATCHED - LV2: LV1 CALL System call (LV2 Syscall 10)
  • PATCHED - VSH: Allow Unsigned act.dat and *.rif files
  • PATCHED - VSH: Disable Unlinking/Deleting of act.dat
  • FUN FEATURE - Fake Save Data Owner (Use Game Saves from ANY Owner)
  • FUN FEATURE - Lock/Unlock Trophies
  • FUN FEATURE - Cinavia protection disabled


  • FEATURE - All 3.55.x REX EDITION Features (Firmware is identical)
  • FEATURE - Downgrade any firmware version CFW with spkg sig check patched


Package Manager is a replacement for the standard Install Package Files option under Game in the XMB. It allows for the install and deletion of .pkg files from dev_hdd0/packages, dev_usb/packages and the standard Install Package Files locations. In addition to this, your downloaded PSN content 'bubbles' will appear under this option instead of cluttering your Game menu with uninstalled content.

USAGE: Navigate to Game in your XMB and click on Package Manager (It will be where Install Package Files usually is). You will find three options.

PlayStation Network Content
Manage your downloaded PlayStation Network Content.

Install Package Files
INSTALL package files from Storage Devices and your PS3.

PS3 Hard Disk (dev_hdd0/packages)
Package Folder (dev_usb/packages)
Standard Package Location (Standard Install Package Files locations)

NOTE: The Install All Packages is only available by pressing the TRIANGLE button when the Standard Package Location option is highlighted because the PS3 will only install ALL packages from the root of a storage device as of the moment.

Delete Package Files
DELETE package files from Storage Devices and your PS3.

PS3 Hard Disk (dev_hdd0/packages)
Package Folder (dev_usb/packages)
Standard Package Location (Standard Install Package Files locations)

1: Highlight the file you would like to delete and press TRIANGLE. The sidebar should appear.
2: Press CROSS on either Unlink or Unlink(Folder) (Both do the same thing for now).


Rebug Toolbox is application designed to complete the full function of REBUG REX EDITION firmwares. Besides from performing the CEX/DEX EID0 and LV2 Kernel Swapping it is also an FTP server and is packed with a bunch of other useful tools.


1: In the PS3 XMB go to Game menu
2: Select Package Manager
3: Select Install Package Files
4: Select PS3 Hard Disk
5: Select REBUG-TOOLBOX-02.xx.xx.pkg


Displays Firmware version, Toolbox version, IP address, current LV2 Kernel and Target ID type and free HDD space.

Quits Toolbox and returns you to PS3 XMB.

Perform either a Full or Soft reboot od the PS3 system.
Soft (LV2 Reboot Only)

Full (On/Off Cycle)

Boot OtherOS with either your currently selected LV1 patches or easily apply ALL LV1 patches and boot.
Boot (LV1 Patches: Apply All)

Boot (LV1 Patches: Use current)

Shut down your PS3.


Switches between NORMAL and REBUG mode

NORMAL mode which uses the DEBUG XMB is the default mode after installing Rebug.

REBUG mode sets the PS3 to the latest available version spoof (updatable in the future) and allows swapping between RETAIL and DEBUG XMB.

This option only works in REBUG mode and lets you select either the RETAIL or DEBUG XMB.

Gives you the choice of the CEX QA (retail) or DEX (debug) Debug Settings menu.


A collection of LV1 patches that can be used for better compatibility with some PS3 tools. Any combination of these patches can be applied before booting OtherOS.


Swaps between CEX and DEX LV2 Kernel. This option will only work if your Target ID is set to DEX

This option requires you have a valid NOR/NAND dump named correctly on dev_usb000. Use EXPORT FLASH TO FILE function found in the UTILITIES menu to dump your NOR/NAND to dev_usb000 and then use c2d.exe to convert your dump to DEX.

Rename your original CEX dump to CEX-FLASH.EID0.NORBIN (16mb) or CEX-FLASH.EID0.NANDBIN (239mb or 256mb)
Rename your converted DEX dump to DEX-FLASH.EID0.NORBIN (16mb) or DEX-FLASH.EID0.NANDBIN (239mb or 256mb)

Once you have prepared your NOR/NAND dumps place them on a USB device and connect it to dev_usb000.

Now that you have your valid dumps named properly and connected to dev_usb000 it is a simple as selecting the option and following the onscreen prompts. Takes less than 10secs once you have your dumps prepared.


Enable/Disable QA flag. This option is only available in REBUG 3.55.x REX EDITION as we are not able to set QA token at the moment from GameOS on higher firmware.

Enable/Disable Recover Mode flag. When enabled your PS3 will reboot into Recovery Mode.

Enable/Disable Product Mode flag. When enabled your PS3 will reboot into Factory Service Mode. This option is only available in REBUG 3.55.x REX EDITION for safety reasons.

Load lv2_kernel.self.[KERNEL_NAME] from USB or /dev_hdd0

Resize VFLASH/NAND Region 5 to allow install of OtherOS.

Install Petitboot to VFLASH/NAND Region 5 from USB.

Sets the GameOS boot flag. Use this if your PS3 is having trouble booting PS2 titles after running OtherOS or is accidently sending you back to OtherOS when trying to enter recovery mode.

Create /dev_hdd0/packages folder or your PS3 to be used with Package Manager.

Save LV1 memory to dev_usb000 or dev_usb006 or dev_hdd0 if usb is not found.

Save LV2 memory to dev_usb000 or dev_usb006 or dev_hdd0 if usb is not found.

Backup your current NOR/NAND to file on dev_usb000. Takes about 45secs for NAND

Spoof IDPS in LV2 memory. Choose from Use EID0 or Use EID5. EID5 will spoof your original CEX IDPS allowing you to connect to PSN if your PS3 is running REBUG REX EDITION firmware in DEX mode. This option is only available in REBUG 4.21.x REX EDITION and below at the moment.


  • L3 changes clock/temperature display
  • L2+R2 enable screensaver
  • START+R2 take a raw rgb screenshot
  • Remote-play via PSP/PSVITA
  • Auto-turn-off if idle for 1 hour
  • Telnet to PS3 ip at port: 8080
  • FTP access with writable dev_flash mounted as dev_rebug (port: 21, user: anonymous, password: (anything))



QA is supported in all REBUG FIRMWARE but at this point in time we are unable to set the QA Token from GameOS on 3.55+ firmware.

It is good practice to enable QA in 3.55 before updating to any CFW not just REBUG.


OtherOS++ is supported by all REBUG REX EDITIONS and will detect your existing OtherOS HDD partition.

However none of the REBUG REX EDITIONS have emer_init.self patched (create smaller GameOS partition). We are working on a solution to this from GameOS.

In the meantime if you do want to create an OtherOS partition you have two options:

1: Use a 3.55 firmware that already has emer_init.self patched to the size you want.
2: Patch REBUG 3.55.x REX EDITION in PS3MFW Builder

If you choose option 2 we highly recommend that you ONLY patch emer_init.self. Also the resulting PUP will only be able to be installed on 3.55 firmware as the spkg_hdr will be mismatched.


From XMB install REBUG 4.21.x AND HIGHER over any 3.55 OFW/CFW/MFW or the same or lower firmware version CFW with spkg sig check patched or any firmware version CFW with spkg sig check patched and QA enabled.

From XMB REBUG 4.21.x AND HIGHER can be uninstalled with the same or higher firmware version OFW/CFW/MFW or with REBUG 3.55.x REX EDITION on a QA enabled PS3 or with the '999′ DOWNGRADER if QA was NOT enabled.

From XMB install REBUG 3.55.x REX EDITION over the same or lower firmware version OFW/CFW/MFW or any firmware version CFW/MFW with spkg sig check patched and QA enabled.

From XMB REBUG 3.55.x REX EDITION can be uninstalled with the same or higher firmware version OFW/CFW/MFW.




From XMB install '999′ DOWNGRADER over any firmware version CFW/MFW with spkg sig check patched on a PS3 with or without QA enabled.

From XMB '999′ DOWNGRADER can be uninstalled/dehashed with the REBUG 3.55.x REX EDITION or from Recovery Mode with any other 3.55 OFW/CFW/MFW.


~Codename: REBUG Team.

Codename: REBUG would like to thank: graf_chokolo (as always) and The Three Musketeers for the work they have done in the past and (hopefully) future.

Big thanks to: naehrwert - For scetool (its elf compression played a big part in 4.21.1) deank - Helping us get the Rebug Toolbox up and running.

Our BIGGEST thanks: flatz - Helping with the OtherOS testing and well... You know what you did..

Rebug Scorpion Artwork: by blastleaf - blastleaf AT gmail.com

Rebug Customised Font: by GDcooya

Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 349 Comments - Go to Forum Thread »

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sparker781's Avatar
#199 - sparker781 - 57w ago
Hey all thanks for stopping by... Here is my dilemma:

I am on Rebug 4.41. Got the 120GB slim model. I have an external which is fine but I grabbed The Last Of Us the other day and can't copy it to my external cause there is a file thats too big for FAT32 file system. I am in a dilemma... I am trying to figure out where to copy the game too.

I can ftp into my ps3 with filezilla however I have 2 games folder...One is called GAMES and the other is GAMEZ. Where should I copy the game to? Also how much hard drive space do some of you have in your PS3? I have debated on upgrading the internal drive to something a little bigger so I can put more games on there but right now I only 36 gig left... Anyone have any idea as to what to delete to free up some space?

Thanks for stopping by.

purkito's Avatar
#198 - purkito - 58w ago
Yeah, since the architecture is the same as Intel x86_64 (or mostly) in theory it might be possible to have a Windows OS on next-gen consoles.

As I stated, the NTFS filesystem wouldn't be a problem even if it's not supported by the PS4 OS, as long as there is some way to boot the windows kernel (like as what PS3 Other OS does - it reserves a section for storing the kboot loader, which is basically a tiny kernel that then loads the full kernel on the filesystem, and it this later one what mounts the root filesystem after booting, proceeding to start udev, services and so on).

But even so, the windows kernel might have to be modded to support basic operation on the PS4, and perhaps the effort of writing drivers for the OS to access most of the hardware that is not "PC" standard (not only graphics, but the bus itself and who knows what else) might not be worth the trouble, or maybe no one will do it for free... let's wait and see if something like this ever reaches the light of day, it would be fun

BTW, I forgot to mention one thing: you should be able to run a Windows OS (at least something older) on the PS3 on top of Linux using something like bochs (a x86 platform emulator fully written in software). I think I read something some years ago about someone having achieved it, but it was too slow to do anything useful

Don't know if it was true or not, never cared to check (heck, I even gave up using Linux on the PS3 as my cheap PC ran Linux much faster, but I never tried OtherOS++ which seems to me has no restrictions like the Sony OtherOS so I don't know how fast and what kind of acceleration you can have these days with Linux on PS3).

JeoWay's Avatar
#197 - JeoWay - 58w ago
I know its based off the architecture as well. I just thought the NTFS Format HDD would explain it fair enough. Now, with the PS4, the architecture would definitely support it. But still, formats.

I would love to see a Windows based OS on the PS4. A speculation has been going around that Other OS may return even on the varies of the PS4's Pc like architecture.

It may also come to the Ps3 again as well. I myself found the other os option in the firmware. its still there, just not usable and i could definitely see it come back to ps3 as well

purkito's Avatar
#196 - purkito - 58w ago
That's right: Windows cannot be installed on the PS3, but that's not exactly the right reason.

The real reason why you can't install Windows on a PS3 is because Windows is compiled as Intel x86 (1) architecture and you don't have the source code to compile it to Power architecture (which is what the PS3 Cell processor is based on) like you can do with Linux. If you had the source code, or if Microsoft released it to the Power architecture, in theory you could run it on the PS3 (provided you also had the correct drivers, or if they already came with that hypothetical version of Windows).

(1) Note: be it manufactured by Intel or AMD, the bytecode is mostly the same and compatible; be it 32 or 64 bit: in this case the bytecode isn't the same and that's why you have 2 versions on recent Windows versions, although under 64 bit OS there is something like a "compatibility mode" to run 32 bit applications. As another side note, Windows 8 is also available for the ARM architecture and that's what you have today on Windows 8 phones and tablets - but the exact same applications aren't compatible for similar reasons as the stated above.

If not, then take a look at the Linux native filesystems (ext3, ext4, reiserfs or xfs): like NTFS, they also aren't also supported by the PS3 OS, but Linux runs on it. What counts is the operating system kernel and the Linux one supports many other filesystems. With an interesting feature called FUSE you can even write userspace filesystem drivers to support any filesystem without having to recompile the kernel itself (this is how currently Linux supports NTFS, and it's quite stable for reading and writing). BTW, you can run Windows (at least until XP) in FAT32 formatted partitions.

Source? Years of experience on the field, but you can Google around or find some books on the subject and see that I'm right

In some cases you can just resign the (fixed) eboot files with recent resigning applications, even if you resign them with 3.55 keys they will work.

The problem is that old eboots weren't being 100% correctly (re)signed as some fields still had references to other firmware versions and in firmware versions > 3.60 Sony added a check on that fields to distinguish what was "legit" and what was "pirated" or "unlicensed", throwing an hex code if you ever tried to run them.

In 4.xx firmwares the trouble to remove those checks would cause so many other problems or incompatibilities that no one making custom 4.xx firmwares went on to try to remove them. But if you use recent versions of resigning apps, the eboots will be signed with every field corrected and will run without problems on 4.xx, even if using 3.55 keys.

For disc-based "fixed" game eboots, recent versions of Multiman can detect and ask if you want to rewrite the correct EBOOT fields, which works in most cases. For "fixed" PSN games or homebrew, you can just search around for eboot resigner applications or redownload the fixed versions that are available in lots of sites, including some good threads here at PS3 News.

Hope I helped.

JeoWay's Avatar
#195 - JeoWay - 58w ago
Windows cannot be installed. Linux can be. Windows would need to modified in order to run. This is because Windows require an NTFS Formatted HDD to install and boot from. Without this, Windows is not usable (nor will it install).

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