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Author Topic: EEPROM on Xbox 360 and xexdump utility  (Read 4515 times)

cjack

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EEPROM on Xbox 360 and xexdump utility
« Reply #30 on: December 04, 2005, 12:30:00 PM »

Thank you Monoxboogie but the x360 is a 48 pin tsop.  I think that I 'll buy two sockets from RS soon ;-)
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TheSpecialist

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EEPROM on Xbox 360 and xexdump utility
« Reply #31 on: December 04, 2005, 12:51:00 PM »

Wow, great work, cjack, respect !!

This post has been edited by TheSpecialist: Dec 4 2005, 08:52 PM
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thecheekymonkey

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EEPROM on Xbox 360 and xexdump utility
« Reply #32 on: December 04, 2005, 02:27:00 PM »

QUOTE(cjack @ Dec 4 2005, 06:55 PM) View Post


2)I have swapped the dvd players just for fun and ..... the games won't boot....x360 tell you "To play this disc, put it in an xbox 360 console". So I think that x360 have some kind of segnature of his dvd player and won't boot games without it!



so what your saying is, that each 360`s dvdrom is `locked` to that xbox 360, and wont work in any other 360 (or at least the one you tried).

hmm, the plots thickens



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unspoiledpuma

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EEPROM on Xbox 360 and xexdump utility
« Reply #33 on: December 04, 2005, 02:38:00 PM »

QUOTE(oskie @ Dec 4 2005, 03:49 PM) View Post

Interesting discovery! No, this chip does not hold the dashboard software. It only has room for 2048 bits of data. It has been speculated that this chip holds system-specific permanent data (serialnumber, region etc). It is quite possible the premium edition keeps this data on the hard drive instead.

Oskar


No because if you remove the Hard drive the xbox360 will boot normaly
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thecheekymonkey

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EEPROM on Xbox 360 and xexdump utility
« Reply #34 on: December 04, 2005, 02:53:00 PM »

could it not just been a ply by M$?

trying to confuse the hackers?

Persoanlly i doubt it myself, but you just never know.

end of the day the 360 still bootswith or without it, on the machines that come with it, so what purpose does it serve?, i can see M$ putting something in there if its not needed, but it could be a ply to try and confuse.
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cjack

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EEPROM on Xbox 360 and xexdump utility
« Reply #35 on: December 04, 2005, 03:12:00 PM »

Just checked DVD player labels that are very similar but .... 2 different rom versions!

Core:
DVD PLAYER model: GDR3120L (X800475-008)
Rom version: 0046DH

Premium:
DVD PLAYER model: GDR3120L (X800475-009)
Rom version: 0047DJ

It's possible that rom versions are not compatible........it'just an hypothesis!
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azninvasion

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EEPROM on Xbox 360 and xexdump utility
« Reply #36 on: December 04, 2005, 06:51:00 PM »

how about trying to switch the rom's ont he drives, its worth a try I guess..
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1st time modder

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EEPROM on Xbox 360 and xexdump utility
« Reply #37 on: December 04, 2005, 07:23:00 PM »

What about if you take the dvd-drive from the premium edition, switch the eeprom chips, and put it into the core edition.  Just a though as then we could tell if it was looking for an identification number from the eeprom, so it would work with a core unit.  Anyone thought of maybe ftping to an xbox 360 and seeing what is on the hd since it doesnt work on a computer.
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tiavo

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EEPROM on Xbox 360 and xexdump utility
« Reply #38 on: December 04, 2005, 07:39:00 PM »

Pretty intresting stuff, good work cjack.
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StepsAscend

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EEPROM on Xbox 360 and xexdump utility
« Reply #39 on: December 04, 2005, 07:48:00 PM »

Wonder if this "unused" eeprom could be a potential bus for a mod.  I'd really like to know why its there.  There has to be a reason.
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ppazz13

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EEPROM on Xbox 360 and xexdump utility
« Reply #40 on: December 04, 2005, 08:00:00 PM »

QUOTE(thecheekymonkey @ Dec 4 2005, 04:53 PM) *

could it not just been a ply by M$?

trying to confuse the hackers?

Persoanlly i doubt it myself, but you just never know.

end of the day the 360 still bootswith or without it, on the machines that come with it, so what purpose does it serve?, i can see M$ putting something in there if its not needed, but it could be a ply to try and confuse.


I doubt MS would have just put an extra chip in to try to confuse people.  If the chip is just a dead chip used as a decoy, it's already been found (< 2 weeks after launch).  Seems like a pretty lame idea for a decoy.

It must serve some kind of purpose.
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Bloodpainter

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EEPROM on Xbox 360 and xexdump utility
« Reply #41 on: December 04, 2005, 07:53:00 PM »

Sigh havent posted in so long i feel wierd   unsure.gif

Could it possibly be (bear with me here) that the eeprom that the eeprom could have 2 locations, like 1 eeprom on the eeprom chip and a backup on the hynix or the mystery chip.  This would explain the core working without the eeprom chip.

Sadly i don't have xbox360 either but another cool experiment you could try is to solder the core eeprom onto the premium, and then try to switch the dvd devices.  I know im speakin out of my ass cause i suck at soldering and i know i would never try this on my box, but seeing what youve done so far has been outstanding.

Just givin my 2 cents.

P.S. Keep up the great work crackerjack.  You got me rootin for ya.
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Speil

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EEPROM on Xbox 360 and xexdump utility
« Reply #42 on: December 04, 2005, 08:21:00 PM »

Im srry if this is stupid but perhaps the EEPROM contains some Copyright protections or something? And with it gone have you tried a back up or something?
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melongstrike

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EEPROM on Xbox 360 and xexdump utility
« Reply #43 on: December 04, 2005, 08:36:00 PM »

oz_paulb

I will work on getting a 360... shit at this point I don't even want one... YET the days of DREAMCAST really changed me if ya know what  mean. I have 300 on  a 360 at the moment, if I ever get my hands on it consider it yours my gift to you and the scene. I will keep you post on my progress. (just call me crazy)
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Alkane

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EEPROM on Xbox 360 and xexdump utility
« Reply #44 on: December 04, 2005, 09:03:00 PM »

MS has shown this time they are willing to spend a little dough on security.  Anyways on to my point...

On PS2 consoles, DVD lasers of different models among same version PS2s cannot be swapped without first reprogramming the EEPROM.  Sony repair facilities have the program to do this and recently it was recreated for the modding community.  Whether this is security related on the Xbox 360 or not, only time can tell.

DVD drives of the same ROM revision should be swapped between two Xbox 360s.  This will at least let us know if its married or just requires a reprogramming of a component (which in itself may depend on other security being bypassed).  That particular Xbox 360 may not have support for that ROM version programmed into it, thus access to the special firmware features cannot be accessed.
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