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[Boobers]

I have a new Duo X2 White coming to replace a damaged one..

The original DuoX2 was damaged when I wired it up for a 1.6 box, but put it on a 1.4 box..

Now, will it be possible to somehow use the new DuoX2 to reflash the damaged DuoX2??

Or is the damaged DuoX2 unsalvagable?

When I put the damaged DuoX2 on a 1.4 or a 1.0, in X2 mode, the XBOX just acts as if the DuoX2 doesn't exist.  In Cromwell mode, the XBOX just sits there with a black screen.  No boot up at all..


B

[Movax]

You can try to hotswap it and then flash it. Not sure on the details involved in the process..

[Boobers]

Thanx for the reply..

By "Hot Swapping", I am guessing you are meaning:

1.  Boot up Slayer's in an XBOX with the good DUOX2.

2.  When booted, pull the DUOX2, unsoldering the BT and D0 lines.

3.  Plug in the bad DUOX2, attach the BT and D0 lines and pray it will flash.


That about sum it up??  


B

[DarkMatter]

QUOTE

2. When booted, pull the DUOX2, unsoldering the BT and D0 lines.

3. Plug in the bad DUOX2, attach the BT and D0 lines and pray it will flash.

DON'T solder anything while the X-Box is still powered up. You'll definately blow something on your motherboard.

Here's what I do when flashing DuoX2's with the M8 and M16 bios' when I've purchased some:
* Open your X-Box and remove the ROM and hard drives
* Temporarily solder a wire from your D0 to a ground point on the motherboard
* Make sure you have a pinheader (male) soldered into your LPC bus
* Make sure the DuoX2 has a female pinheader soldered to it
* Plug the good Duo chip onto the LPC bus
* Re-install your ROM and hard drives, but leave them partially out so you have easy access to the LPC bus area
* Boot up the X-Box with the slayers disk inside the ROM drive
* When the Slayers dash finishes loading, remove the good Duo and plug in the one you want to flash
* Flash it and turn on the X-Box when it automatically shuts down after flashing to check if it flashed ok.
* If no problems, then you can flick the switch on the duo to flash the other bank if you like
* Lastly, remove the ground side of the D0 wire and attach it to the modchips D0 point when you decide to leave the mod in it permanently

What I usually do, is flash one bank with the M8 bios and the other bank with the M16 bios. Then I always have a chip for any version X-Box at any time.
Don't bother flashing with old bioses, as they are just way out dated. But I have to admit that the M8 and M16 bios hasn't been re-vamped for quite some time, but that's due to them being extremely stable with no need for improvements.
One thing: I've heard, and I'm not 100% sure on this, but hot swapping modchips can only be done on a V1.0 X-Box. I can't say for sure, so please find this out before you attempt the above.
I hope the above helps.
Good Luck!!!
Regards,
DarkMatter

[Boobers]

Thanx for the very detailed reply.. I do have several 1.0 boxes so that won't be a problem..

A couple questions and clarifications..


1.  Do I not need to worry about the BT point on the DUO X2??

2.  Would the fact that the LED on the bad DUO X2 is not lit at all indicate that the bad DUO X2 is beyond help??

3.  Would this manner of "Hot Swapping" allow one to actually re-FLASH a corrupt TSOP.  It seems to me that, instead of pulling the good DUO X2 and putting on a bad DUO X2 to re-flash, one could pull the good DUO X2 and then just leave it empty..  In theory, any FLASHing done would flash the TSOP..

Thanx again for the reply.


B

[DarkMatter]

QUOTE

1. Do I not need to worry about the BT point on the DUO X2??

If you have no reason to switch to a retail bios, then you can leave the Duo permanently enabled by placing a wire link as shown in the picture below. This eliminates the need for the BT point being soldered to a point on the motherboard.

QUOTE

2. Would the fact that the LED on the bad DUO X2 is not lit at all indicate that the bad DUO X2 is beyond help??

Yes, its possible that the Duo has been damaged, if so, it wouldn't be worth trying to find out what's been shot.

QUOTE

3. Would this manner of "Hot Swapping" allow one to actually re-FLASH a corrupt TSOP. It seems to me that, instead of pulling the good DUO X2 and putting on a bad DUO X2 to re-flash, one could pull the good DUO X2 and then just leave it empty.. In theory, any FLASHing done would flash the TSOP..

A corrupt TSOP, as in the TSOP IC on the Duo itself, or TSOP on the motherboard???
If you mean the motherboard TSOP, then I'm not 100% sure. But if it can, then the method explained below should work:
* You need to jumper the points on the motherboard that will allow the motherboard TSOP to be flashed
* You need to install the DuoX2, but the D0 wire will need to be temporarily grounded so the X-Box boots the Duo, then it needs to be removed.
You can do this by soldering a wire to the D0 point on the mobo, then manually grounding the other end of the wire so the Duo can boot. Once the Duo has booted, then remove the ground side of the wire and try to flash the motherboard TSOP. You need to also decide when you want to flash the mobo TSOP that you use a retail bios or say an M8 bios. Also you need to find out what size bioses can be flashed to the mobo TSOP. There may be some limitations, I'm not sure.
Remember that the ground MUST be removed from the D0, otherwise when flashing, it will try to write to the Duo's TSOP and not the motherboards.
If you do try the above, then please let us know how you get on.
Good Luck!!!
Regards,
DarkMatter

[Boobers]

I was referring to the Motherboard TSOP...

So, the important part of this process is to make sure to remove the D0<===>GRND wire BEFORE trying to flash the TSOP...  

I think my new DUO X2 will be here by Wed or Thu (19-20 Sep 07)..  I will definitely report back on the success/failure of the process.


Thanx again...

B

[Boobers]

QUOTE(DarkMatter @ Sep 15 2007, 11:20 PM)

A corrupt TSOP, as in the TSOP IC on the Duo itself, or TSOP on the motherboard???
If you mean the motherboard TSOP, then I'm not 100% sure. But if it can, then the method explained below should work:
* You need to jumper the points on the motherboard that will allow the motherboard TSOP to be flashed
* You need to install the DuoX2, but the D0 wire will need to be temporarily grounded so the X-Box boots the Duo, then it needs to be removed.
You can do this by soldering a wire to the D0 point on the mobo, then manually grounding the other end of the wire so the Duo can boot. Once the Duo has booted, then remove the ground side of the wire and try to flash the motherboard TSOP. You need to also decide when you want to flash the mobo TSOP that you use a retail bios or say an M8 bios. Also you need to find out what size bioses can be flashed to the mobo TSOP. There may be some limitations, I'm not sure.
Remember that the ground MUST be removed from the D0, otherwise when flashing, it will try to write to the Duo's TSOP and not the motherboards.
If you do try the above, then please let us know how you get on.
Good Luck!!!
Regards,
DarkMatter

Ya know, something else just occurred to me..

Using the above info, how does this scenario pan out??

* Take a working 1.0 box that has a flashed TSOP and the Male Header Pins on the LPC...

* Attach a wire to a D0 point, but leave the other end hanging....

* Boot up into Slayers Disk

* Attach the other end of the D0 wire to a ground (without soldering)....

* Plug in the non-working DUO X2 and FLASH...


Does this sound like it would work??  I am usually the type to just try it and see, but I hate to blow up another motherboard....


B

[Boobers]

Well, being the impatient soul that I am, I went ahead and tried it..

I booted up with Slayers on a 1.0 box that had the Straight Male Headers on the LPC and had the FLASH solder points done..

I got into the FLASH menu of Slayers, then grounded the D0 line and plugged on the defective DUO X2.

Selected FLASH and got a FLASH IS NOT WRITABLE error... I got this for both the X2 position and the CROMWELL position.

So, this indicates to me that the DUO X2 is well and truly fracked..


B

[DarkMatter]

QUOTE

Ya know, something else just occurred to me..

Using the above info, how does this scenario pan out??

* Take a working 1.0 box that has a flashed TSOP and the Male Header Pins on the LPC...

* Attach a wire to a D0 point, but leave the other end hanging....

* Boot up into Slayers Disk

* Attach the other end of the D0 wire to a ground (without soldering)....

* Plug in the non-working DUO X2 and FLASH...


Does this sound like it would work?? I am usually the type to just try it and see, but I hate to blow up another motherboard....

I thought you wanted to flash the motherboard TSOP???
But if you were confirming to see if your faulty Duo was defective, then this is the proceedure:
* Solder the D0 to a good ground point
* Install the good Duo
* Boot up Slayers
* Remove the good Duo and replace it with the suspect one
* Try flashing
* If you get errors on both banks, then the suspect Duo is definately faulty
At no time on the above do you remove the D0 wire from ground

Now if you wanted to re-flash the motherboard TSOP, then this is the sequence:
* Don't solder the D0 to a ground point
* Install a working Duo
* Touch the bare end of the wire of D0 to a ground point until the Slayers disk boots
* Stop touching the D0 to ground
* Remove the working Duo
* Try flashing the motherboard TSOP
The whole purpose of the D0 is to stop the onboard (motherboard) TSOP from booting. If you don't install D0 to ground, then the motherboard AND the Duo will try to boot at the same time, thus causing the X-Box to fragg. Think of the D0 as being a switch, turning off the mobo TSOP.
You probably know all this, but I'm mentioning it just in case you don't.
The reason we only touch the D0 to ground is to stop the mobo TSOP from booting, but when a bios is loaded, via the Duo, we don't need the Duo anymore. Its done its job. But to flash the mobo TSOP, the D0 can't be grounded, as we need to flash to it. That's why the D0 is left hanging.
Removing the Duo will prevent the flash program recognizing there's a modchip on the LPC bus, as we want to try flashing the mobo TSOP.
I hope the above makes things a little more clearer.
In fact later today I'll try flashing the TSOP of one of my V1.0's to confirm if it all works.
I'll post in here with my results.
Regards,
DarkMatter

[DarkMatter]

QUOTE

Now if you wanted to re-flash the motherboard TSOP, then this is the sequence:
* Don't solder the D0 to a ground point
* Install a working Duo
* Touch the bare end of the wire of D0 to a ground point until the Slayers disk boots
* Stop touching the D0 to ground
* Remove the working Duo
* Try flashing the motherboard TSOP

Don't bother, it doesn't work unfortunately. You have to do it via a savegame exploit or use a first generation modchip.
Sorry about that.  

QUOTE

But if you were confirming to see if your faulty Duo was defective, then this is the proceedure:
* Solder the D0 to a good ground point
* Install the good Duo
* Boot up Slayers
* Remove the good Duo and replace it with the suspect one
* Try flashing
* If you get errors on both banks, then the suspect Duo is definately faulty
At no time on the above do you remove the D0 wire from ground

But doing the above should confirm if you have a dud Duo.
Regards,
DarkMatter

[Boobers]

QUOTE(DarkMatter @ Sep 16 2007, 08:43 PM)

I thought you wanted to flash the motherboard TSOP???

Yea, I do...

But, it occurred to me that I could test this DUO X2 I have without having to wait for the new one to come, using a good 1.0 MB that already has a TSOP flashed.

Judging from my tests and from what you posted about your tests, it doesn't look good to be able to resurrect this bad DUO X2 or be able to flash corrupted TSOPs...

Bummer all the way around...

Thanx for all your input.


B

[Chrisbrix]

I guess i have the same problem.
When i use my duo x2 gs(cromwell) I tried to flash the flashbios on this chip.
When the xbox starts up it starts up normally as if the chip isnt there,I get the errroe 16 because of my hdd.
when i change banks to the cromwell bios it start up those bios.
If i were to flash over the cromwell bios and run slayer as you guys have said,will i be able to switch the banks and then flash the other one as well?

Thanks for the help you guys.