Jtag - Some questions

[xboxbreaker]

So I am in the middle of the JTag hack on an exploitable Xbox I finally got hold of. Everything is going smoothly, USB flasher worked first time, and Ive got Identical dumps, installed Xell. But it was getting late so i left it there.

Just a few things I've tried to find answers on over some weeks and either just read contradictions or nothing atall:

Removing R6T3: Is this necessary if you all-ready have your CPU key? Once the fuses blow you still have your CPU key so what is the reason? People with dual Nands?
Also does the latest freeboot with dash 9199 still blow the fuses? or does it workaround the fuse check?

Media updates: I watch a lot of films/ TV shows from external media. If i use a retail xbox to download the codecs on the same HDD will It be ok on the Jtag (id rather not connect to XBL atall). Does anyone know where they are stored on the HDD incase I get a different drive and just want to copy the codecs over?

Updates from game media: I'm still a bit confused about this. Do games only contain Avatar and Game updates, or do they also contain Dash updates? For example, next year, could I brick the console by allowing a new game to update to the new "Kinect" dash (assuming I haven't used a new freeboot)?

HDD: Can a HDD/Avatar thats being used on a Jtag cause a retail console to get banned? Say for example I swap the HDD to play XBL on a stock console? and that HDD contains homebrew data such as emulators and Xexmenu? (I'll prob keep homebrew on an external usb memory anyway, just curious)

USB flasher on 64-bit windows: I had windows in test mode, and after a lot of digging found what I thought were correct drivers for the flasher, but windows 7 still doesnt want to install them even in test mode (complains about signing), so I know im doing something wrong, ended up on different computer. Anyone know exactly what driver it is? Is there a signed driver available?

I know its a lot of Q's, but these are the only outstanding questions I have. Thanks for the help!

[AD]

Removing R6T3: Is this necessary if you all-ready have your CPU key? Once the fuses blow you still have your CPU key so what is the reason? People with dual Nands?
Also does the latest freeboot with dash 9199 still blow the fuses? or does it workaround the fuse check?

USB flasher on 64-bit windows: I had windows in test mode, and after a lot of digging found what I thought were correct drivers for the flasher, but windows 7 still doesnt want to install them even in test mode (complains about signing), so I know im doing something wrong, ended up on different computer. Anyone know exactly what driver it is? Is there a signed driver available?

Alternatives to removing R6T3: http://www.xboxhacker.org/index.php?PHPSESSID=e345b8fa35196fbfa4fc80954db7fd49&topic=13658.0


Windows 7 64bit requires you to boot disabling driver signing enforcement.  There are ways to automate that boot process every time.  Easier in my head to just reboot when you want to use your flasher.

[janvkem]

Removing R6T3: Is this necessary if you all-ready have your CPU key? Once the fuses blow you still have your CPU key so what is the reason? People with dual Nands?
Also does the latest freeboot with dash 9199 still blow the fuses? or does it workaround the fuse check?

Removing R6T3 (or bridging u6t1/u6t2) is a safety measure for accidental updating. If you update with R6T3 in place, you will burn a fuse and loose jtag possibilities. If R6T3 is removed it will not burn a fuse and you can still use the jtag hack.

Media updates: I watch a lot of films/ TV shows from external media. If i use a retail xbox to download the codecs on the same HDD will It be ok on the Jtag (id rather not connect to XBL atall). Does anyone know where they are stored on the HDD incase I get a different drive and just want to copy the codecs over?

Can't help you with this as I don't know.

Updates from game media: I'm still a bit confused about this. Do games only contain Avatar and Game updates, or do they also contain Dash updates? For example, next year, could I brick the console by allowing a new game to update to the new "Kinect" dash (assuming I haven't used a new freeboot)?

Same answer as to removing R6T3 applies. If you update with R6T3 removed you will be good (after reflashing). With R6T3 in place you will lose the hack, but your console will not be bricked as you could easily restore your nand backup with some adjustments as fuses will be burned.

HDD: Can a HDD/Avatar thats being used on a Jtag cause a retail console to get banned? Say for example I swap the HDD to play XBL on a stock console? and that HDD contains homebrew data such as emulators and Xexmenu? (I'll prob keep homebrew on an external usb memory anyway, just curious)

This might happen. However it is best to just keep jtag and retail separated.

USB flasher on 64-bit windows: I had windows in test mode, and after a lot of digging found what I thought were correct drivers for the flasher, but windows 7 still doesnt want to install them even in test mode (complains about signing), so I know im doing something wrong, ended up on different computer. Anyone know exactly what driver it is? Is there a signed driver available?

See answer from AD.

[xboxbreaker]

Thanks for the responses guys.

Windows 7 64bit requires you to boot disabling driver signing enforcement.  There are ways to automate that boot process every time.  Easier in my head to just reboot when you want to use your flasher.

Yeah I managed to do that, but for some reason I still cant get it to install. Ill have go at it again another time, Ill just use the XP machine for now, before I tear any hair out.

As for the fuses, I thought burning them only prevented you learning your CPU key, I wasn't aware that it prevented exploits from booting. Is that because older kernals try to read all the fuses on boot? I'll go for one of the alternatives discussed later, just incase.

Thanks for the help, if anyone knows anything about the Codecs that would be helpful. every Xbox I have had has asked to connect to live to download AVI, MP4, DIVX codecs, I want to avoid this if possible. Maybe see if it works using my existing HDD which I assume has the codecs stored on it. Then see if i can find them and copy them to a new drive for the Jtag.

[irishwhip]

the media update works if you use one of the patching apps like xm360. but this will prevent it working on your retail box, obviously.
best to keep a seperate hdd for the hacked box and copy the media update over

[neonpolaris]

Some of the answers here are confusing, I would like to clarify, for others that may need this info at least.

Removing R6T3:
If you update you console to a new dashboard version, it will blow efuses that prevent older dashboards from booting.  If this happens after the 7179 dash, you will no longer be able to execute the JTAG hack.  This means no XeLL/XeLLous/XBR/freeBOOT/homebrew EVER AGAIN.  EVER.

To further clarify:  If you've got the 8599 XBR running on your console, but don't have avatar part installed on your harddrive, you can run the 8955 update without blowing an efuse.  It will only install the avatar part since you already have that dash.  But if you run the 9199 update, you're hosed.  It's best to remove it and be safe.  If you remove the resistor and try to do an official update, you will simply get an error and have to reflash your NAND back.  There's also an alternative method (bridging) that is supposed to be easier to do (and reverse).

Updates from game media:
These are always the full updates.  See above.

Media updates:
You can patch the file to work on your JTAG console, but it will no longer work on your non-jtag console.  If you try google you can find the filename of the file (or a pre-patched copy, probably)

HDD:
The homebrew won't work on your other console obviously.  It may not show up at all or show up but not run.  Yes, you're asking for a ban doing this.  Not just your software, but your profile stores info about what you've been running as well.

USB Flasher:
64-bit Windows is always a bag of hurt for this stuff.  Can't help you there, I keep an machine with 32-bit XP just for this reason.

[xboxbreaker]

OK, that pretty much answers eveything. Thanks for the time gents!