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September 9, 2010 // 12:38 am - Earlier today we reported on a preliminary PS3 flash and registry entry analysis from DemonHades and RichDevX, and now SKFU (linked above) has shared his input thus far.

To quote: Since PS3News released their PS3 FTP application I did some research on the PS3's registry.

The registry and it's backup are stored on dev_flash2 as xRegistry.sys.

The header

BC AD AD BC 00 00 00 90 00 00 00 02 BC AD AD BC

The entries

Every entry has a fronttag which is 5 bytes long. I'll describe:

56 41 00 11 01

This is an example value:

/setting/parental

Behind the value theres a 1 byte close mark:

00

The 5 bytes

The first 4 bytes are a unique but random number. Every value has it to be identified and found by the system as there is no special pattern. An sprx(?) finds every value by this 4 bytes.

56 41 00 11

The 5th byte can be 00, 01 or 02. 00 tagged values are actually activated/used by the VSH, 01 ones not. The 02 seems to mean "DO NEVER UNLOCK". For example the QA Mode is tagged with 02.

00 == unlocked/used/activated
01 == locked/unused/inactive
02 == never ment to be unlocked


Stop footer

The registry has a

AA BB CC DD EE

after the last value. Here the system stops to search for values.

Single values without tag

Some values are behind the stop tag spreaded randomly in the file it seems. I have no clue how the system finds those yet but here are some I found:

- your local username
- your language (f.e. eng for english)
- your PS3 system name
- URL to the information board online stored files
- HDD serial
- Board name
- your PSN username + password
- your WIFI network key
- your local IP
- your PSID
- path to local user pic

You can modify all those values as long as you don't change its size or adress. For example the local user pic is loaded from:

/dev_flash/vsh/resource/explore/user/000.png

But you can redirect it to load from USB for example:

/dev_usb/vsh/resource/explore/user/12345.png

The Cool Stuff

The retail PS3's registry contains all values to unlock the settings which are possible on a test/debug PS3 and even more like QA mode. We can enable those via the registry, but we won't see any effect in the XMB.

That is because we just UNLOCKED it, but different files on dev_flash handle what we can actually SEE in the XMB. So we need to modify them also to fully use debug options on a retail and more.

This can be done by mounting the dev_flash from USB. We need to do this as we can not write to the original dev_flash. So once we can load our customized dev_flash from USB and have modiified our registry, we have a nice way to load a our custom firmwares.

The Crash Report

The registry can contain an crash report which is seperatly splitted with another registry header as explained above. It contains system error messages, for example if you muck up your registry ;-)

PS3 Live USB CFW Theory

While the Jailbreak just changes mountpoints it should be possible to do the same for other places than the BDD, aswell.

For the JB, the drive is remounted @ HDD. So why not mount the dev_flash from USB?

Surely this is possible and I hope to see some action here soon!

So we would have a good solution to test and run custom firmwares as the brick risk is equal zero, because we can just unplug the USB device and the dev_flash is mounted as common - unchanged.

SKFU on PS3 Registry Research and PS3 USB Custom Firmware

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#22 - aamir007 - September 9, 2010 // 12:02 am
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The scene gets better everyday, hope to see CFW soon and wont mind booting off the USB.

#21 - PS4 News - September 8, 2010 // 11:55 pm
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Quote Originally Posted by IndyColtsFan84 View Post
I thought SKFU was the one on the edge of making a break-through? I didn't see anything about CJPC in this article.

I assume he meant because the FTP app of CJ's is what was used by SKFU in this research.

#20 - mat989 - September 8, 2010 // 11:41 pm
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Loading custom flash from the USB would be great... I also like the idea of converting a retail to a debug unit!!!

#19 - usman20045 - September 8, 2010 // 11:40 pm
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Great news, can't wait for a custom firmwares

#18 - thinnpikkins - September 8, 2010 // 11:38 pm
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Quote Originally Posted by PS3 News View Post
I'd save that until after his next contribution, which is something much of the scene has been waiting for quite some time and will help unlock the PS3 further.

Excellent hint, as i am pretty sure as to what it is, but, as of right now CJPC is the boat that keeps the scene floating after the fact, so hopefully there are more brilliant minds out there working on their own projects... +rep does not do justice to how i feel right about now, these guys need nobel peace prizes for the shit they had to walk thru for so long.

#17 - Jes03 - September 8, 2010 // 11:38 pm
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If you can turn locks on and off how about turning the "no copy savegames" off. I think EVERYONE wants that turned off.

#16 - IndyColtsFan84 - September 8, 2010 // 11:38 pm
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Quote Originally Posted by Jurai2 View Post
would like to give CJPC a tongue kiss!


I thought SKFU was the one on the edge of making a break-through? I didn't see anything about CJPC in this article.

#15 - IndyColtsFan84 - September 8, 2010 // 11:36 pm
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I wish someone would upload a decrypted dump of the ps3 flash chips to megaupload or something. I would like to get an in-depth look at a proper dump! Maybe make a few hex edits and see what happens!

Come on SKFU upload a decrypted dump so us amateurs can have a crack at making a break-through on CFW!

#14 - Starlight - September 8, 2010 // 11:34 pm
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Quote Originally Posted by lohr View Post
Sony can't do anything except issue new firmwares. Was Microsoft able to stop the drive hacks? No, and look how long that's gone on for. Was Microsoft able to stop the jtag hack? Only by issuing a firmware upgrade which killed the e-fuses so you couldn't do the j-tag hack.

Sony already issued the new firmware, and that's all they'll be able to do most likely, that and these lawsuits on stores that sell the original PSJailBreak device, or clones. Maybe also issue PSN bans based on the ID of the backup manager, if you even ran that. Look @ history. Sony never was able to stop the PS1 hacking, the PS2, I got out of the PSP scene years ago, but I think that's still happening as well.

I never count sony out as the ps3 is a much different console then the ps1/ps2, i hope sony cannot do anything but always in the back of mind i wonder.. not saying that sony will close this exploit by any means but i just know sony is going to give it best shot and try to close it, hopefully a fix for all firmware updates etc can be found also which would really make sony bite the dust.

#13 - PS4 News - September 8, 2010 // 11:30 pm
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Quote Originally Posted by Jurai2 View Post
would like to give CJPC a tongue kiss!

I'd save that until after his next contribution, which is something much of the scene has been waiting for quite some time and will help unlock the PS3 further.