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[panosvo]

Try the always enable option(solder BT on chip with point 9) see more in

http://forums.xbox-s...howtopic=427711

also have you done everything for 1.4 version witch lucks some power and grd on the pin holes?

[Chancer]

Measure Pin 9 for 3v3. If it s present then the problem is the BT connection. If its not then the problem is the LPC end. measure it on the chip itself

[Fraggedbox2]

The LPC doesnt get power unless the d0 gets grounded, which is what happens when the chip is ON.

you might wana try grounding the d0 (solder it to the case or a metal screwhole) and try to turn it on, if it DOESNT frag then the d0 solder is bad.

If you dont wana do that try a multimter diagnostic


For a 'live' diagnostic:

To perform these diagnostics, leave your hdd in the xbox case and take the dvd drive out (still connected) and turn it 90 - 180 degrees around and prop it up behind your xbox case ( ouside the case)

The chip should now be visible, turn your xbox on, and while powered on make your measurements using the following guidelines:

We're measuring volts here, so adjust your meter to that setting on a small scale ~10 or 20 volts. Make sure your meter is on DC (direct current) and in the ~20 v range, or it wont register correctly.

probe to the metal on the case (gnd = 0v) and the other probe to the pin you want to check. Read the meter while both probes are in *good* contact. Dont freak if it reads negative, that just means you placed wrong probe on ground, if it's the right amount you're fine.



For 'cold' diagnostics:

for these, you can unhook your xbox and all the drive etc to get at the motherboard, because we dont need power.

Here we'd be measuring resistance (ohms). There are 2 types of diagnostics here, I'd only recomend one at this point unless you think your LPC flawed (bad resistor or MB component, not too likely they're hard to break).

The diagnostic I recomend is a conductivity check. Your multi-meter essentially charges one probe of the multimeter and checks for voltage on the other probe to measure resistance.

I'd check your D0 point first if you're going to do this diagnostic. Put one probe on the bottom D0 point, and one probe on the D0 poing on the Duo chip. If you read more than about 1 ohm of resistance, you're solder is bad. Likely you're going to see about .5 ohms or your meter wont pick up a damn thing because there's no conductivity. If it reads less than an ohm your solder is fine.

I'm not going to bother with telling you the LPC diagnostic cause I dont think your MB would work at all if you screwed it up so bad that you broke the LPC, trust me I've abused a board before.

Hope that helps  

[gradje16]

ground the d0 of my Mobo or the d0 on the chip?
wich one should a solder to a metal screw/metal case?

I checked the bottom d0 and the chip d0 for resistance, it says 0.9 ohm, so my d0 solder is good?

[Chancer]

Having just read your reply in the other thread where you mistakenly though the ALT BT picture is a 1.4 and in light of the problems here are you certain the box you have is not a 1.6

[Chancer]

That rules out one thought then
Run Xbox D0 to ground. Connect BT on the chip to Pin 9 and report back what happens.
If it FRAGs D0 is fine. If it boots the retail M$ Bios D0 is not correct. If the LED does not flash on the chip and it FRAGs then the LPC is the problem. If it boots the DuoX 2 hacked bios and the LED on the chip flashes then the BT connection needs looking at (When you resolder it to the original point)

[Chancer]

Unsolder D0 from the chip end and solder to ground on the mobo
BT pad on the chip to Pin9 (shown as point G in the Duo diagrams) Take off the BT that goes to the Mobo at the moment
There should be no D0 connection to the chip from the mobo while doing this and no bT connection from the mobo to the chip

[HackDaBox]

Try my Duo X2 Troubleshooter!

HackDaBox !

[Chancer]

No connection at all. Leave the wires as they are at the moment till you have sorted the LPC. Have you anypictures of the underside install?
With the box like this you can check for 3v3 at pin 9 by connecting as fraggedbox2 advised

[Chancer]

The chip has no power without the 3v3 at that pin so you do have some damage somewhere. A picture could help maybe spot something

[Chancer]

Well pin 9 is for a start so you will have to follow that and see where the voltage goes missing

[gradje16]

so just check all the points?
One side of the meter at point 2 and the other side on all the other points? if the meter doesn't show an activity that point is bad?