[XBOX360] Jtag noob - is there a definitive guide/walkthroug
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killabyte




Posts: 1185

PostPosted: Mon, 23rd Aug 2010 16:42    Post subject: [XBOX360] Jtag noob - is there a definitive guide/walkthroug
I just got really fucking lucky and stumbled upon a 360 that the dude barely played and never connected to live. I saw his gamerscore and it was 1200ish. Still has a lot of the factory stickers and shit on it.

It is a HDMI console. Does that make it a jasper or falcon, etc? Is there a definitive guide/walkthrough where I can read/find everything I need for this? I'm pretty damn excited. I will be so happy to install all my shit to the HD and not have to fuck with drives anymore. I'm on my 4th drive on my main box and it's already raising hell.
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garus
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PostPosted: Mon, 23rd Aug 2010 20:57    Post subject:
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Last edited by garus on Tue, 27th Aug 2024 21:29; edited 1 time in total
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killabyte




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PostPosted: Mon, 23rd Aug 2010 21:07    Post subject:
shit i've already agreed to buy it. i thought if it had a blade style dashboard that it was all good? dude says he never connected it to live and with such a low gamerscore he couldn't have played much on it. hopefully my chances are good.

i've been googling like a mofo but i keep hitting a lot of broken links. is there a good site to go to that i can wrap my head around? if i have to buy or order any shit i'd rather go ahead and order it as i'm really anxious to do it. love technical challenges like these Very Happy
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garus
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PostPosted: Mon, 23rd Aug 2010 21:10    Post subject:
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killabyte




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PostPosted: Mon, 23rd Aug 2010 21:18    Post subject:
hell yea, will do. i should have it tomorrow afternoon when i get off work.

btw, when you say lpt is slower, how much slower is it? if i can build that myself instead of having to wait on a part i'd be more comfortable with that... on the other hand though i just had a really bad experience building an lpt interface to flash a spi bios chip on my home pc. never did get that shit to work right. i had my plug made correctly though i just assumed it was an issue with the lpt port i was trying to use.

i also read somewhere about 256 and 512 jaspers not being jtaggable? is that something that could potentially be an issue for me?
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garus
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PostPosted: Mon, 23rd Aug 2010 21:23    Post subject:
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killabyte




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PostPosted: Mon, 23rd Aug 2010 21:27    Post subject:
alright last question till i get it in my hands - can i safely go ahead and order a NAND-X or should i wait till it's in my hands?
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garus
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PostPosted: Mon, 23rd Aug 2010 21:30    Post subject:
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killabyte




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PostPosted: Mon, 23rd Aug 2010 21:33    Post subject:
well hell if it's that expensive i will probably just got the LPT route. i can start it before bed or something or let it sit here in my office all day doing its thing.
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killabyte




Posts: 1185

PostPosted: Tue, 24th Aug 2010 23:49    Post subject:
alright, may 20th 2008 is the date and the dash version is 2.0.6717.0

the xbox scene forums are really shitty. hurts my eyes to look at that and i can't find any kind of jtag guide in the hacking section.
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garus
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PostPosted: Wed, 25th Aug 2010 12:22    Post subject:
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killabyte




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PostPosted: Wed, 25th Aug 2010 18:14    Post subject:
cool thanks garus. digesting all this right now. i'll probably be back with some questions, hope you don't mind.
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Xenthalon




Posts: 1722
Location: Germany
PostPosted: Thu, 26th Aug 2010 10:02    Post subject:
Good look with that killabyte!

I just bought my jtag from garus a couple of weeks ago, and it's awesome. o/
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killabyte




Posts: 1185

PostPosted: Thu, 26th Aug 2010 17:07    Post subject:
thanks - this is a lot more complicated than i thought it was going to be. pretty sure i can handle it but this cable building mess is annoying. the whole resistor things on the plug baffles me. i had a bad experience with this trying to make an spi flasher for my botched motherboard and i could never get it to read the chip although i'm certain the cable was good.

hate to cough up 45 bucks for a reader for a 1 time thing though. i'm also confused as to what the jtag connections are for. i understand why you need to read and write to the nand... maybe i just haven't read far enough ahead.
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highstuff




Posts: 1976
Location: Netherlands
PostPosted: Thu, 26th Aug 2010 17:55    Post subject:
killabyte wrote:
thanks - this is a lot more complicated than i thought it was going to be. pretty sure i can handle it but this cable building mess is annoying. the whole resistor things on the plug baffles me. i had a bad experience with this trying to make an spi flasher for my botched motherboard and i could never get it to read the chip although i'm certain the cable was good.

hate to cough up 45 bucks for a reader for a 1 time thing though. i'm also confused as to what the jtag connections are for. i understand why you need to read and write to the nand... maybe i just haven't read far enough ahead.


The JTAG connections are for the exploit to work..when those wires are connected the patched system management controller (SMC) will send some code to the GPU and then the cpu will run GPU driver but instead it also run some custom code. witch enables the exploit. Smile

for a better explanation you can read this:

http://free60.git.sourceforge.net/git/gitweb.cgi?p=free60/tools;a=blob_plain;f=imgbuild/hack.txt;hb=HEAD
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garus
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PostPosted: Thu, 26th Aug 2010 20:12    Post subject:
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killabyte




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PostPosted: Fri, 27th Aug 2010 15:12    Post subject:
hell i'd rather pay 45 for my own usb reader/writer than give that and more to someone to do it for me. plus there is no one around here that can do. i live in the stix of the southeast US... there aren't many intelligent people here.

i ordered all the shit to make my lpt reader though. i know it's going to be a headache and that's ok. i'm in no hurry and i wanted something to waste some time with so this should do. i just hope it's not as aggravating as trying to read/write to my botched bios flash. i eventually had to give up and let dfi take care of that one.
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garus
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PostPosted: Fri, 27th Aug 2010 19:11    Post subject:
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killabyte




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PostPosted: Sat, 11th Sep 2010 05:48    Post subject:
garus please tell me i haven't fucked up like i think i have

 Spoiler:
 


for some reason that fucking pad wouldn't let anything stick to it. i'd get it connected and then start trying to connect the last wire and that one would break loose over and over. by the time i paid attention to the fact i was buring the mobo and fucking up traces... well anyway hopefully it aint too fucked. i'm just pissed because i hate fucking soldering and i hate for something lame and stupid to get the upper hand with me. i could give a shit about the 150 bucks i may have wasted on this shit.
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garus
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PostPosted: Sat, 11th Sep 2010 19:06    Post subject:
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killabyte




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PostPosted: Sat, 11th Sep 2010 20:38    Post subject:
i was wiring the legs of the resistors. the two wires that go there that dont have resistors i decided to cut a paper clip to the same length. i'm scared to go any further with it since i can't tell if i damaged the traces. i guess that's some kind of coating on the pcb that i've bubbled up.

my brother is really good with this type of stuff and i'm about 90% sure he could fix it but of course that asshole isn't answering my calls after he told me to get up him an hour ago. gotta love family
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garus
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PostPosted: Sat, 11th Sep 2010 20:41    Post subject:
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Last edited by garus on Tue, 27th Aug 2024 21:30; edited 1 time in total
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killabyte




Posts: 1185

PostPosted: Sat, 11th Sep 2010 21:36    Post subject:
garus wrote:
It is really tough to damage a trace with just soldering iron, unless you leave it hot on the trace for an hour Razz


even if it's a 45w iron? i've read most say to use a 15w to keep from damaging shit. i really dont mind trying more but i just feel like i've fucked it up. the iron is just so awkard to hold and use... i wasn't trying to burn the mobo it just happened. i thought i was being careful.

getting tired of waiting on my brother though and thinking about trying what you said, put a little solder on the pads and then i thought i'd tin the wire ends and just try connecting them instead of the resistor ends. should be easier than the way i was trying.
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garus
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PostPosted: Sat, 11th Sep 2010 22:07    Post subject:
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killabyte




Posts: 1185

PostPosted: Sun, 12th Sep 2010 01:42    Post subject:
heheh don't you mean fahrenheit? that would be a pretty hot iron!

nope apparently you meant celsius. had no idea those irons got that hot... damn. i'll really be surprised if i didn't fuck it up. i'm wondering if i just piece it back together and try it out and it works if that's a sign that it's not fucked up or if those traces don't affect normal boot up and would only affect the hack? i dunno maybe i'm talking outta my ass.


Last edited by killabyte on Mon, 13th Sep 2010 15:47; edited 1 time in total
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killabyte




Posts: 1185

PostPosted: Sun, 12th Sep 2010 06:43    Post subject:
well suffice to say that soldering is just not my forte'... it only took me 3 hours to solder those 5 wires for reading/writing the nand. i know that seems excessive, like REALLY excessive but damn the stupid wires wouldn't stick to those pads. so i had to try tinning the tip and getting solder on the pad... then the tip wouldn't tin anymore.

it was just one thing after another. hopefully its not fucked. i'll know in an hour or two if i wasted my time. before starting i put the box together for a quick test and it still fired up and ran the dashboard so if those traces are necessary for normal operation then i guess they weren't fried.
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killabyte




Posts: 1185

PostPosted: Mon, 13th Sep 2010 21:41    Post subject:
it's alive... ALIIIIIIIIVE. reading the nand Very Happy

wouldn't you know when i get it all hooked up and ready to read one of the wires turned loose for whatever reason. luckily i was able to wedge it in between 2 caps and it just happened to lay on top of the solder point perfectly that way. still gonna have to fix it though, haven't done the actual jtag part yet just the nand part

i would advise anyone thats looking to do this in the future and has minimal soldering skills and shaky hands to think twice and maybe let someone do it who has experience.
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sabin1981
Mostly Cursed



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PostPosted: Mon, 13th Sep 2010 21:44    Post subject:
Congratulations matey! I sure as hell wouldn't try it, I don't trust my soldering "skills" >_<
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killabyte




Posts: 1185

PostPosted: Mon, 13th Sep 2010 22:12    Post subject:
heh i dont trust mine either dude. since that wire has turned loose i dont know about the actual jtagging part. no telling how many more of those wires will pop loose.

the fuckin' youtube videos make it look so damn easy. if i had a soldering iron that i could grip like a pencil and that had a tip the size of a paper clip i'd be set
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killabyte




Posts: 1185

PostPosted: Tue, 14th Sep 2010 00:49    Post subject:
garus all of these are listed as the jtag method for my box, but why are they different? i went with the first one because i had the stuff to do it with and lacked the diodes for the 2nd one.

http://img340.imageshack.us/img340/5687/newwiring.jpg

http://i776.photobucket.com/albums/yy46/ericrihm/SPI__JTAG_diagram_zephyr-falcon-opu.png

http://img687.imageshack.us/img687/7382/diagramfalcon.jpg



also i'm reading 3 different guides but haven't made it through to the end - i take it when i'm done reading/patching/writing the nand that i can remove all that stuff but what about the jtag wiring? does it have to remain there for it to work or once the patched nand is written you are good to go?
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