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Author Topic: Chameleon  (Read 1284 times)

Xeero

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Chameleon
« Reply #150 on: August 01, 2003, 07:36:00 AM »
I even desoldered the pin header and cleaned up the holes a few times in my effort to try different pin headers.  I tried 3, all with the same results.  they were a pain the ass to remove because I did make sure to fill the holes with solder after inserting the pin header.  I'll try removing the pin header again and cleaning the holes and fluxing the whole lengths of the pins (the side that goes through the LPC holes tonight.  Hopefully that will work.
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Terrorbyte

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Chameleon
« Reply #151 on: August 01, 2003, 07:54:00 AM »
Xeero:
QUOTE
I even desoldered the pin header and cleaned up the holes a few times in my effort to try different pin headers.


Dude, it's gotta be the board.  That XBOX mobo was probably fubar'ed from the get-go (maybe not the whole board but at least the LPC bus).  I'd write that one off as defective.

If you get things workin' let us know how you fixed the issue, others might run into similar problems in the future.

This post has been edited by Terrorbyte: Aug 1 2003, 05:39 PM
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explicitlyrics100

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Chameleon
« Reply #152 on: August 01, 2003, 05:25:00 PM »
i would agree, i cant believe you are doing sumthing worng, esp if you have done that many and tested it with other chips. he/she might have given you a box he/she messed up while chipping so perhaps it was beyond repair...

btw i reflashed my chameleon with 4977 again xeero and the xecuter2 bit has magically returned! lol spooky
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Xeero

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Chameleon
« Reply #153 on: August 01, 2003, 11:16:00 PM »
UPDATE

Dumped another 5 hours into it tonight, testing as many as 10 other chips on the board and noting their behavior.  Xecuter2s worked fine and loaded Cromwell.  Chameleons would either frag or the MS BIOS would load.  I noticed the blue LED faintly flickering, so I knew it was getting SOME voltage.  The Chameleon gets its 3.3V from pin 9.  I was having trouble getting a voltage reading on it, so I checked continuity between the pin in 9 and the solder in 15 (also 3.3V) and got continuity with 0 ohms.  So I knew the power was fine.  Checked the ground on pin 2 to the screw hole used by the Xecuter line.  0 ohms.  Reassembled the Xbox and booted it up, MS BIOS.  Hard-grounded the d0 to the screw hole, then it fragged.  Checked pin 2 again - NO CONTINUITY to the screw hole!!!  Checked again.  CONTINUITY.  Checked again. NO CONTINUITY.  Like I said, I've soldered it many, MANY times and I know my soldering is perfect in this case.  I ran a bit of 30awg from the solder at the base of pin 2 to a nearby ground point (a small silver square).  Reassembled with the customer's Chameleon, still frags!  However, I tested it with all my other chips.  They all booted Cromwell, Chameleon Cromwell, FlashBIOS, etc.  JUST the customer's chip won't work now.

So it looks like grounding the d0 isn't enough to power the chip.  The chip NEEDS to grounded on pin 2 or else it will not be able to function properly and the Xbox will receive a frag.  For those reading this, hard-grounding the d0, which usually works as a diagnostic procedure, is not always sufficient with the Chameleon.

With respect to this scenario, the evident problem was a faulty ground on LPC 2 and a defective Chameleon.  As noted, I repaired pin 2 by manually grounding it.  Also, I had a few sample Chameleons that Xodus had sent me, so I've installed one at no charge to the customer, and the Xbox is now buttoned up and perfectly modded.  The only difference is the jumper wire between pin 2 and the ground.

This post has been edited by Xeero: Aug 2 2003, 06:18 AM
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dzv

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Chameleon
« Reply #154 on: August 02, 2003, 01:14:00 AM »
You should have tried grounding the Chameleon directly to another ground (instead of wiring LPC Pin 2 to a ground).  It would have just been interesting to know what the result would be then.
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Xeero

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Chameleon
« Reply #155 on: August 02, 2003, 05:19:00 AM »
QUOTE (dzv @ Aug 2 2003, 04:38 AM)
You should have tried grounding the Chameleon directly to another ground (instead of wiring LPC Pin 2 to a ground).  It would have just been interesting to know what the result would be then.

Well, my intention was to repair the LPC points and provide a working pin header so the customer could transparently swap chips on it.  The extra wire is on the underside of the board and is the only wire there (no crappy alt d0 for me), so this seemed to be the best solution.

But just so I understand what you were saying, were you suggesting running a wire from, say, the Quick Solder point 2 to a ground point.  If this is the case, I believe I can safely assume it would work.
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Terrorbyte

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Chameleon
« Reply #156 on: August 02, 2003, 12:14:00 PM »
Xeero:
QUOTE
But just so I understand what you were saying, were you suggesting running a wire from, say, the Quick Solder point 2 to a ground point. If this is the case, I believe I can safely assume it would work.


Yes, running another ground to quick solder point 2 should work, at least providing a more consistent ground to the entire modchip.  However, perhaps it would be better to connect pin #2 to another ground, although if signal is somehow interfering with that area it probably won't work.  Since you're attempting to repair the pin header in order to allow transparent modchip swapping, I'd try getting that pin #2 to ground to something else.

Looks like you isolated the cause of your issue.  Bad grounding/continuity, although it does sound like the source of the problem (defect) is the actual LPC bus and not the Chameleons, since you tested multiple Chameleons on that same mobo.  I've always liked the fact that the Xecuter chips had an independent ground to a screw on the motherboard, and did not rely on pin #2 to provide the grounding.  

I've never really liked Chameleon modchips (not that I'm blaming the problem on the Chameleon), I'll always recommend X-ecuter over Chameleon.

This post has been edited by Terrorbyte: Aug 2 2003, 07:16 PM
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Xeero

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Chameleon
« Reply #157 on: August 02, 2003, 02:38:00 PM »
Well, the problem was with the Chameleon as well, as it was two-fold.  The faulty ground pin was definitely obstacle number 1; NO Chameleons would work until I resolved it.  But like I said, even after I repaired pin 2, the customer's Chameleon didn't work.  Tried hot-swapping to flash it, but it kept coming up with flash type FF FF, even when the others came up with the proper flash code (01 DA, I think).

I can certainly understand Xodus' intention in utilizing pin 2 as the ground.  Those who install a pin header solder this point anyway may as well make use of it.  Unfortunately, as you and I know, soldering a header pin to an LPC hold is much more prone to failure than simply screwing down a wire, which is obviously near impossible to screw up.
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aitf311

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Chameleon
« Reply #158 on: August 04, 2003, 02:05:00 PM »
If anyone here knows how to install the Chameleon with the pogopin adapter, please respond
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sk8ermike6789

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Chameleon
« Reply #159 on: August 04, 2003, 07:08:00 PM »
QUOTE (aitf311 @ Aug 4 2003, 10:29 PM)
If anyone here knows how to install the Chameleon with the pogopin adapter, please respond

yea, i know how, all you need to do is hold it down all the way so the plastic almost touches teh motherboard, or touches, and make sure the d0 spring thingy is in place, and screw it in... ohhhhh yea, you need a new screw... go out to a hardware store and get one thatll fit, it should be a tiny bit less then 1/2 an inch, and it should have a fat head and it should be the right width.... its really not complicated... wink.gif


ok now, i have a question... can i take a wire and put it on that d0 spring and put it to a switch and then on the other side of the switch, can i take it to the sheilding, and toggle that switch to turn the mod off/on??? becuase whenever i tighten the screws 4 the xbox case too tight, my mod turns off (i think, the bios doesnt load, its still green and not blue, and msdash loads up) im guessing that when i tighten it the spring goes too far down and touches the sheilding or something...

oh yea, does any one know how to use the expansion port for external switches???
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agony

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Chameleon
« Reply #160 on: August 05, 2003, 06:09:00 AM »
hi. i have installaded the chamaleon (MODE 4) on a 1.0 and a 1.1 xbox, and all seems good except when i try to flash it. from evox i got the error message "UNKNOW FLASH" what is going wrong?
i have evox 3752, evoxd6 on 1st bank e x2 4972 on 2nd.

This post has been edited by agony: Aug 5 2003, 01:33 PM
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agony

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Chameleon
« Reply #161 on: August 07, 2003, 06:10:00 AM »
QUOTE (agony @ Aug 5 2003, 02:33 PM)
hi. i have installaded the chamaleon (MODE 4) on a 1.0 and a 1.1 xbox, and all seems good except when i try to flash it. from evox i got the error message "UNKNOW FLASH" what is going wrong?
i have evox 3752, evoxd6 on 1st bank e x2 4972 on 2nd.

problem fixed adding the following lines to evox.ini.
Flash  = 0x015b,"AMD - Am29LV800B",0x100000
Flash  = 0x01da,"AMD - Am29LV800B",0x100000
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plue99

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Chameleon
« Reply #162 on: August 07, 2003, 10:44:00 AM »
ph34r.gif
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juleskitten

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Chameleon
« Reply #163 on: August 07, 2003, 12:28:00 PM »
go to the main site and read the installation instructions or the instructions that came with the pogo adaptor. there's even photos. if that still doesn't help then come back
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sk8ermike6789

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Chameleon
« Reply #164 on: August 07, 2003, 09:10:00 PM »
QUOTE
i have a v.1 x box thanx again

hey so do i , what a coincidence ohmy.gif
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