Has anybody tried this? I have not yet but don't really want to risk the kit since it's working fine but would be nice to have a backup of the nand just in case something happens, say power going out during a recovery, ect. It's easier and super quick compared to lpt on a retail which takes around 45 minutes for a 16mb nand. Hawk
i tried dump and flash, i dump my xdk 7776, and after that i do downgrade to 4929, and finally flash 7776. Demo kit work. Also You can plug in your lpt to sidecar cables, and dump your NAND by nandpro tomorrow i show schematics
Yeah but lpt is really slow, I would imagine that xell would work, but not really sure why you would want it. I just would like to have a back up in case ya know. Hawk
Nice! I think you could probably retrofit one normal dvd cable for both connections you just split it in half and then attach the lpc to that.
i tried JTAG ( zephyr test kit board ) and XELL, but don't 20sek. after that RROD... other bootloader, that's problem my test kit is really "TEST KIT" next time i try flash XELL on 16MB xD Card, and plug in, maybe this time...
Jtags work on all Development systems on all recoveries to date with both read/write. Its diagram is the same as normal jtag but it may require you to do it from the bottom if your sidecar cables are in the way. Xell will not work.
Please don't add to the confusion... :shrug: JTAG = Exploit (connection from the Southbridge to GPU JTAG port) SPI = External/recovery NAND FLasher (LPT connection for NANDPRO) Technically you don't JTAG a devkit because nobody made a JTAG exploit for it. I suppose you mean reading/writting to the NAND with the SPI port.
Who would even consider jtagging a kit? It's just good to use the tools to back up your kit incase something happens. Hawk
... You just mirror the image of the board on the retail jtag+LPT hack and do it from the bottom of a dev, nuff said. Thats what Sonic-ISO was trying to get across when he posted. I currently have a backup of my dev nand as we speak. And then what are you going to do when it fails during a recovery and the xam isn't intact?
That link doesn't say anything about a JTAG hack for devkits. At all. All it talks about is hooking up a LPT port via SPI. So what l_oliveira posted is 100% correct. If you're going to make the claim that the JTAG hack works on a devkit, please show proof of it in action, but most importantly, explain why you would even want to bother implementing an exploit designed to run unsigned code on a box that does so by default. It would be one of the most pointless hacks ever, basically equal to claiming "hey, I hacked my retail to run retail code!" You're either purposefully screwing with people or you don't understand how the JTAG hack works on a retail kit. JTAG has -zero- to do with reading/writing flash so JTAGing any kit, retail or otherwise, so how do you propose that JTAG can help with recovering a bad flash? -hl718
No you have it all wrong. LPT=nand reader, jtag=exploit. Also stop confusing people, also stop lying by telling people Xell works on a devkit just to have members of the forum be your guinea pigs. (Up there I was suggesting it lol) Mods this isnt spam or instigating arguments, its to keep people from breaking their hardware due to the stupidity of other members.
Jtag exploit and reading the NAND are two separate things my friend. jtag has nothign to do with reading and writing. I used the program and backed up my NAND a couple times just in cause I ever need to flash it back the old way. edit saw this had already been explained, my b. Hawk
What the fuck are you talking about leo have you lost your mind?! Sonic-ISO backed up his NAND using JTAG intact with a SPI. Also you want to fucking quote me where I said xell works on a fucking devkit?! Quit pulling shit out of your ass. You also just quoted a Personal Message I sent to you in private. Plus Sonic-ISO clearly states that he dumped his nand using this method. Thats EXACTLY what I fucking told you in that personal message Leo if you have a problem with that then talk to sonic-iso because I know for a fucking fact his kit is fine and he used this method to restore his kit. So lets sum up what you have done here leo. 1. You claimed I was confusing people when I never said JTAG or LPT is the same and a clear example that I knew this is the fact I said LPT+JTAG 2. You claim I was telling people that xell works. Where the fuck do you see that?! 3. You quoted a private message I sent to you claiming it was false information but Sonic-ISO clearly stated thats what he did to get it to work. Leo this is why nobody likes you is because you make up bullshit and you turn on people trying to help you like a pitbull, even if sonic-iso didn't mean he used a jtag it certainly wont fuck anything up, it just wont do anything so what in gods name is your problem? I was just relaying the information that the one guy who actually did this to a XeDK said. He may have been mistaken in his terminology but that's something you will have to speak to him about.
No one, anywhere, has backed up a NAND on any Xbox 360 using the JTAG exploit. As I said earlier in this thread "JTAG has -zero- to do with reading/writing flash." Everyone is responsible for their own words If you're telling people that the JTAG exploit (which currently only uses Xell to deliver its payload) runs on a devkit, then it follows that you're making the claim that Xell works on a devkit. And while it is true that Xell itself could likely be recompiled for devkit use, a retail image would likely fail if you tried to use it. I can guarantee you that he didn't use JTAG to restore any kit. One very important rule when dealing with electronics is never connect anything that doesn't have to be connected. The fact of the matter is you are hacking a system that you likely, know nothing about. In fact I would doubt very much if anyone here in the forum had complete schematics for a retail Xbox 360, let alone a devkit. Now, add on to that the fact that no one outside Microsoft really knows what is going on inside the dev flash image and you've got an even bigger question mark. Sure, you can make educated guesses based on similarities to retail behaviour, but that's it. Can you really say that hooking up a JTAG connection in a devkit will have -zero- effect? It might do nothing, or it might trigger a condition that the dev flash is looking for in order to enable or disable a given function. The short version is we don't know. If sonic-iso made an incorrect claim, then you should make sure you *verify* that claim's veracity before repeating it as fact. Once you repeat it, it becomes your claim and that's how misinformation spreads across the net. As for the low level bickering, both LEo and lllsondowlll have said their piece and there's where it is going to stay. If you want to talk about the technical aspects of anything, please do so. If you want to argue, take it to PMs. If you want to cuss up a storm, go to another site. Dropping f-bombs left and right doesn't make you look tough, it makes you look like an angry teenager. -hl718
Well then I am going to say this once, rather the JTAG is needed or not (dispite claims of people using it). The LPT works on the underside of the devkit because they are through-points and Sonic-ISO just grabbed an image and mirrored it and then hit the points on the bottom of the kit because the sidecar cables were blocking it from the top. He recommends using something faster than an LPT though.
