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December 18, 2012 // 6:00 am - Following up on the PS3UserCheat and True Blue unnecessary DRM-infected dongles being hacked alongside zadow28's work, today PlayStation 3 developer oct0xor shared a video of his OpenCobra Payload which aims to render the current Cobra USB dongle from Max Louarn useless.

Below are the details from his blog, as follows: "First I am going to say that this is not going to be an article, just a first blog post and some info about my recent project.

Finally I got my hands on cobra it was quite a lot of time since I touched this last time. There was s good things happened since then eg. I reverse engineered usercheat and true blue, had done a lot ps3 and not ps3 related hacking. There was a bad things eg. BlueDiskCFW, lv0 leak, a lot of devs leave the scene...

Cobra was for me really "the last" thing I have to do.

The last time when I worked on this I didnt had a dongle, and all what I had was a dump by JaiCraB. I reverse engineered it as much as possible, figure out almost all tricks, encrypton and etc. And figuare out that it reads a lot of data from dongle, and I cant do much without dongle itself. Thats why I put this project to the back burner.

Well... I had never buyed anyone dongle, and I never was not going to. All my dongles was donated (thanks again ) but not that time.

it was hard for me to make this decision but a few days ago cobra finally shipped to me...

3 days and now its all over.

Security is good enough, but not without big security risks. But it still the best crypto/obfuscation what I had seen on ps3. Sony have something to learn from this guys, especially now.

Cobra / True Blue almost identical, have the same source code, if you ever hacked 1 thing, 2nd wouldnt be a problem. The main functionality, honestly, not changed since original jb. Thats a shame. Thats why I cracking them like nuts

On the fourth day I taked a decision to make my own "OpenCobra" payload. only clean code without drm and garbage, to be able to port it to any new firmware, and change/add features. It taked 2 days, 3000 lines of asm, and you had seen the result.

Atm it based on 4.1 payload, plans for future is check/add new features from 4.4/5.0. Port to a new firmware (if cobra will not do this for me), and realize all nice innovations from new version of psp emu, such as better emu accuracy, 3D and etc...

In video you had seen Payload Loader. Thats the all code it has:

[Register or Login to view code]

This tag related patches handled by mngr. So far I want to move it in payload. First I have to check how it handled in 4.4 / 5.0

Not sure yet when it will be released, if it will be, but we will see.


[Register or Login to view code]

If this subject will be interested for people, maybe I will write a full article about True Blue / Cobra analysis and hacking.

btw: Me and ~ some psp mysterious dark figure ~ reverse engineered algo for generating valid psp isos back to jule. But saves and a lot of games dont work without patching. So cobra's patched emu much better there imho."

Below are some additional pics from his blog which simply states: Usercheat + Cobra = <3

From flat_z: Here is some explanations to make things more clearer. If you read my twit about ps2_netemu you can see that I reverse-engineered it. It includes almost all things which are required to make custom disc images of original PS2 discs and run them on the PS3 if everything will works fine. So it can lead us to the process of remastering PS2 discs which includes making of ISO.BIN.ENC (the encrypted version of original image which can be read by the PS3), creation and encryption of .VME files (virtual memory cards), ISO.BIN.EDAT (includes the title ID of disc).

The only thing which is not currently known is the format of decrypted CONFIG file (I can decrypt the file and encrypt it back but it have a complex format). It is optional and can be empty but I'm afraid that some games requires it to run on the PS3. My plan was the creation of PS2 remastering tool and I wanted to share it. Although I even not sure will it work or no but there are many chances that it will.

But something happened before I started to do it. My HDD on the laptop died and I have all information regarding PS3 on it. Although I was able to restore some important files but not all. So I need a time to buy components for a new computer and build it. For the same reason, I have a delay on my real job (I'm working as a free-lancer) so I will going to do my job before I start to do something new for PS3.

P.S. I see many questions about compatibility. You don't need a backward compatible PS3 console to run PS2 games through ps2_netemu because it is software emulator and doesn't require any PS2 hardware components. Also I think that ps2_netemu is more better and stable than ps2_softemu but this statement requires testing.

Finally, from naehrwert (via comes some related Cobra ODE EID0 information (ECDSA from , as follows:

[Register or Login to view code]

While this is definitely interesting news, odds are it's just a ploy for the Cobra Team to release a new dongle that will be 'required' for their upcoming PS3 4.3x CFW unfortunately or the PS3 ODE in order to further line their pockets with PlayStation 3 sceners' hard-earned cash once again... as always, time will tell for sure.

Video: OpenCobra Cobra USB Dongle PS3 Payload by Oct0xor Demo

Video: OpenCobra Cobra USB Dongle PS3 Payload by Oct0xor Demo

Video: OpenCobra Cobra USB Dongle PS3 Payload by Oct0xor Demo

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#1264 - teaynadesh - April 27, 2015 // 12:16 pm
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Thank you for Multiman Sir.

#1263 - ktgw11 - April 10, 2015 // 7:02 pm
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thanks for good soft. all the best.

#1262 - djmakis - March 27, 2015 // 1:58 pm
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thanks for the files, also from MixeryMaxe comes S-DMC, a Selfmade DMC for Cobra ODE users with details below:

Hallo comm

I would like to present an user project from two friends (GamersRS & esprit1711 from psXtools) and me. Around october 2014, a friend asked about the possibility of a microcontroller based project. And i just said "of course" Chipwelt from psXtools had built a "switchmod" as alternative methode to the DMC and GamersRS asked me about a "microcontroller based switchmod".

So the idea from the S-DMC was born

I had built a microcontroller (PIC16F628A) based circuit and had written a software in asm. The prototype looks ugly but it works

And here esprit1711 comes into play. He designed a real "eye candy" PCB and then the big tests began.

After finishing the big tests esprit1711 had kills few bugs on the PCB and i made an optimization the software for the PIC.
The final version was finished.

The S-DMC is for Slim models. The installation is simple, there are just 4 wires to soldering (+ 2 optionale, 1 LED for swap-magic signaling) and one little cut one the power PCB of the PS3. The S-DMC simulate the switch positions from bd-drive so you are able to swap the disc and the PS3 don't get it

Despite of the cuts on the power PCB i was able to preserve the original PS3 eject function. Function of the S-DMC are:

  • 1 click on eject button = normal official disc eject
  • hold eject button(~10sec) = normal official bd-drive reset
  • double-click on eject button = swap-magic for cobra ode

The official release was in early 2015 and until today there are no problems.
The end product works like a charm

More information:

  • First present thread:
  • Official support thread:
  • Installation instructions:

Credits goes to:

  • Chipwelt
  • GamersRS
  • esprit1711

Have fun

Update: Hi, today i received new information from Chipwelt. Ok as i said, i don't have a ODE and i don't use the S-DMC.

It can also be used without ODE to swap psx (and *ps2) backups even on OFW.
e.g. insert an original psx game in the ps3 and wait until the disc icon is appear in xmb, than double-click on eject button (for swap-trick) and now you can insert any psx backup and play again, EVEN on OFW .... crazy that i didn't know that.

*ps2 backups of course only on bc models. But in the same way as with psx games. Ok, at this time the S-DMC is only for slim models but this can be changed if there is a demand

Chipwelt released a video in november 2008 with a switch-mod and show a ps2 swap on a cecha model

#1261 - ori0 - March 24, 2015 // 3:42 am
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Thanks for keeping the PS3 going strong!

#1260 - gurpreetbal - March 15, 2015 // 9:45 am
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thanks for uploading

#1259 - PS4 News - March 7, 2015 // 1:41 am
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7 - 3 - 2015 Cobra ODE News - Update

We are pleased to present the Cobra ODE FW 2.4 wich properly adds support for the Emu USB QSB and addresses a number of small bugs we found in particular with the drive door support for 4k consoles. We have updated the DMC triggering mechanism for enhanced performance.

The game database file has also been updated to include many new titles.

We are unable to fully support FAT PATA consoles with DMC owing to issue with BD recordable media compatibility and a multitude of different bluray drive daughterboards. FAT SATA consoles with BMD-31 will remain supported. If you have purchased DMC for PATA FAT consoles, you may return it to your reseller for a refund.

DMC will be kept fully supported on FAT SATA (BMD-31), 2k/2k1, 2k5 and 3k consoles.

Since we have removed the Hardware Passthrough mode from ODE FW 2.4, we suggest that users use ODE FW 2.2, if they wish to update the OFW of their console to 4.66. ODE FW 2.2, still has the option to enable HW Passthrough mode providing you are using the USB Clip on PCB. After updating the console OFW to 4.66 you can update to ODE fw 2.4 again.

Finally, from coalchamber1022: (DMC + OS 4.7 + CECH-2001A)

Hi Guys, Formalities...

PS3 Type: CECH-2001A
PS3 OS: v4.7
ODE: v4.2
ODE FW: 2.4
DMC: v1.0
Boot Disc: ModNation Racers (BCAS20105)
Swap Disc: Verbatim 25 GB 6x SL (LINK)
SD Burner: Generic from Amazon (LINK)

CFG File:

[Register or Login to view code]

I got things hooked up, loading a game is still a bit of a PIA but it works.

  • After plugging in my HDD with my games on it I plug my PS3 into power then boot it up.
  • I then put in by Boot disc I see the cobra menu and select a game.
  • I then get a what looks to be a video of just the cobra icon at that time I eject my boot disc then just put the boot disc back in. It then loads up the game selected in the XMB
  • I then hit 'x' to start the game the bootdisc then pops out then the ode flashes red/blue so i leave the boot disc and let it suck back in.
  • Then in a few seconds it ejects again then ODE flashes green/blue I then pop in swap and BADABOOM it loads up.

With that many ejects and loads I am anticipating my BD drive to crap out soon. Hopefully cobra team can lower the number of ejects but in any case it works!!

#1258 - Suprising - February 18, 2015 // 11:02 am
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I just upgraded my old Cobra to a newer updateable version today!

On 4.66 it seems Sony are catching and winning the race with ODE's. Anyway, I do have a swap disk which means I am sorted for now...

26 - 2 - 2015 - Cobra ODE News - Information

All Cobra ODE users should avoid updating to OFW 4.70 until Cobra Team has carried out extensive testing.

Some videos on 4.70:

#1257 - jodson - February 16, 2015 // 11:41 am
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I do not think it worth buying it go with what we have today with all PS3 already possible and with the minimum of expense.

#1256 - devbabdev - February 16, 2015 // 10:08 am
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should i need cobra dongle?

#1255 - Isleofdoom - January 30, 2015 // 7:30 am
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Multiman shares alot of info between the cfw cobra port which made me look into the issues with controller synch n are all within mm causing issues due to certain files where synch needs to be patched properly in with the file.

I already ran the tests and intact does work correctly thus also giving back the exit screen