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Author Topic: Falcon Jtag  (Read 70 times)

GvM

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Falcon Jtag
« on: June 25, 2011, 09:17:00 AM »

Hello.
So I've got successfully dumped nand. checked CB, it's fine and I continued.
Soldered boxaddr transistor jtag but screwed db1f point he specified, the soldering point poped out from the hole, and got cracked a few millimeters of the track.
Am I totally screwed? I cant restore that if it's passes throught the hole.
Next I tried soldering the wire to ft1u2 http://www.dports.me/Xmods/alt.jpg (left bottom) but I only keep getting e79 and one red light blinking (IMG:style_emoticons/default/sad.gif)

I'm using coolshrimp tool to write xellous. As I understand I must set aud clamp smc fix (and dvd tray too?), but not quite sure setting that in checkboxes of coolshrimp's tool does apply something. Could it be something wrong and that's why I get e79?

This post has been edited by GvM: Jun 25 2011, 04:46 PM
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GvM

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Falcon Jtag
« Reply #1 on: June 25, 2011, 10:55:00 AM »

resoldered it back to previous point restoring track somewhat like this
still e79

wrote back 2mb of stock nand. boots fine... Am I doing something wrong or is my soldering so bad?
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rigger66

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Falcon Jtag
« Reply #2 on: June 25, 2011, 12:13:00 PM »

QUOTE(GvM @ Jun 25 2011, 05:55 PM)  

resoldered it back to previous point restoring track somewhat like this
still e79

wrote back 2mb of stock nand. boots fine... Am I doing something wrong or is my soldering so bad?



Use this guide to write xellous. start from step 6

here

and just use the ready made Patched SMC and XeLLous images  Falcon
If you still get E79 this is  jtag wiring error so recheck your soldering for continnity with a multimeter

Regards

Rigger66
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GvM

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Falcon Jtag
« Reply #3 on: June 25, 2011, 12:20:00 PM »

No. I can't get cpu key because Xell doesn't boot. I get e79 when I flash it.

Well the 6th step is a bit complicated, though I tried doing same with coolshrimp's jtag tool (it also phails to write nand with audclamp+dvd-tray (file not found, bug in the tool) so i had to put it required file manually).
Anyways writing only xell (not xellous) results in e79 too... so the last thing I left with is to check my soldering and wiring...

Also what would happen if db1f point screwed? How could it affect working of stock nand? I somewhat restored it but I worry what would happen if I desolder jtag connection with it and jtag itself.
Also, as I said before, the stock nand works okay with jtag wirings for me... I wonder if it should\or shouldn't work if jtag wiring is bad?

ps wtf is the rigger66 the xbox-scene itself lol only he cares on my posts and atleast gives some suggestions (:
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GvM

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Falcon Jtag
« Reply #4 on: June 26, 2011, 06:28:00 AM »

As I understand E79 can appear when flashed with wrong SMC.
I use boxaddr transistor method, so I choose 'AUD_CLAMP only' in jtag tool. Am I doing right?
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rigger66

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Falcon Jtag
« Reply #5 on: June 26, 2011, 12:23:00 PM »

QUOTE(GvM @ Jun 26 2011, 01:28 PM)  

As I understand E79 can appear when flashed with wrong SMC.
I use boxaddr transistor method, so I choose 'AUD_CLAMP only' in jtag tool. Am I doing right?


Hello Mate!  Sorry for the late response ...but really I can`t tell you much more than I have.

The best Tutorial guide l Believe to follow....is the one I posted and you will find if you follow from the start
You may come across less trouble, but if you do find trouble? Then there are alternative routes to follow.
I think .if I where you ...I would strip out the jtag wiring and start afresh......Your LTP Wiring is good so leave that.
I would use nandpro for certain as this will be less problematic and easier to troubleshoot.

Use the switching diodes method instead of the Boxxdr method and you will may find less trouble
E.g.: same type of setup but instead of using transistors and resistors you use the switching diode
(Remember to make a note of the polarity (Black Diode end to Aud-Clamp and Alternate point) method    J2D2-Point 1 = any alternative point J2D2-Point 2 = Aud=Clamp   J2D2-Point 4 &7 Bridged.

Sorry I can`t be of more help to you....But Don`t rush into it......take it step by step and I am sure you will Get the results in the end.

Good Luck Mate!

Regards

Rigger66
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GvM

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Falcon Jtag
« Reply #6 on: June 26, 2011, 01:34:00 PM »

Don't worry 'bout me that much rigger66 smile.gif

I don't want to remove current wiring until I would be completely sure that I'm doing right with the software part so then it's 100% a bad soldering/wiring. At least not until I get bat41 diodes so I would rewire the simplest way.

Current questions for me are:
1. Is coolshrimp's jtag tool is fine for uploading xell with smc fixes for boxaddr transistor jtag?
The tool gives three options: original smc, aud clamp, aud clamp and tray.
As I understand there are two signals used for transistor  jtag in the tutorial here on xbox-scene: the db1f1 and aud_clamp (of four available: tray (dvd pwr), argon (rf), db1f1 (hdmi?), q2n1 (aud_clamp) as stated in smc_io docs).
So if I use q2n1 and db1f1 then what should I specify in coolshrip's tool? aud_clamp only? what about db1f1 then?
I mean what the heck with the jtag tool. Here is an application where you can set each point to use for each wire including db1f1 (check the shot) That's what I'm gonna try next time for getting right SMC.

2. If I do everything right (using 'aud clamp only' in jtag tool) then there is a possibility that db1f1 wiring is fu*cked and that's why I get E79.
As I stated before the point just pulled out with 1mm of the track... then I tried to solder that wire to alt point FT1U2 - it's much bigger and easier to solder. I can't understand why they use that db1f1. But got E79 too.
Then I soldered it right to the track of db1f1 (some people did that and got everything working). But still E79.
That's the cool-story.

3. Stock NaND boots fine. Is it okay that it boots fine with soldered jtag wiring on falcon or that means my jtag wiring is bad?
And what if I stop using db1f1 and get the wire to any other jtag point (tray or argon) and set the right smc. Would that be okay? Or they can replace aud_clamp only?
Do I really get the wires to points specified in tutorials?
Or can I solder any of the wires from any transistors to any jtag point and just generate my right smc?

Anyway I'm thinking of getting few diodes and doing diode jtag, it's much simpler to do and people tell that it works like charm... not sure about screwed trace under motherboard though lol...

rigger66, ty for your replies.
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rigger66

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Falcon Jtag
« Reply #7 on: June 26, 2011, 02:24:00 PM »

QUOTE(GvM @ Jun 26 2011, 08:34 PM)  

1. Is coolshrimp's jtag tool is fine for uploading xell with smc fixes for boxaddr transistor jtag?


I have never used Jtag tool to fash xellous or xell  ....I have read way to many post concerning error`s with the smc files ....So I only use Nandpro b  to inject the  smc  into xellous or xell...Thats why I suggested you use Namdpro b   wink.gif  if you read the tutorial without haste.....you will find it easy.

QUOTE(GvM @ Jun 26 2011, 08:34 PM)  


2. If I do everything right (using 'aud clamp only' in jtag tool) then there is a possibility that db1f1 wiring is fu*cked and that's why I get E79.
As I stated before the point just pulled out with 1mm of the track... then I tried to solder that wire to alt point FT1U2 - it's much bigger and easier to solder. I can't understand why they use that db1f1. But got E79 too.
Then I soldered it right to the track of db1f1 (some people did that and got everything working). But still E79.
That's the cool-story.



Again sorry to repeat....but you can check for continuity with the alternate points to see if your wiring is good
eg: set your multimeter to continuity help
probe wire  just prior to your alternate solder point and probe any other alternate point on the board = if you get continuity...then that  point of solder is good.

QUOTE(GvM @ Jun 26 2011, 08:34 PM)  


3. Stock NaND boots fine. Is it okay that it boots fine with soldered jtag wiring on falcon or that means my jtag wiring is bad?
And what if I stop using db1f1 and get the wire to any other jtag point (tray or argon) and set the right smc. Would that be okay? Or they can replace aud_clamp only?
Do I really get the wires to points specified in tutorials?
Or can I solder any of the wires from any transistors to any jtag point and just generate my right smc?

Anyway I'm thinking of getting few diodes and doing diode jtag, it's much simpler to do and people tell that it works like charm... not sure about screwed trace under motherboard though lol...



Yes this is Fine ...If it was not booting then I would be worried....   ohmy.gif
As for your db1f1 alternative methods ...then not sure if this may be an option below
Alternative options

Really you need to check your wiring for continuity.........reflow them points with lots of flux  smile.gif  and use the tutorial I suggested you use and forget about the Jtag-tool for now untill you get xellous booting.
Jtag-tool is great for finishing the freeBOOT image...but not so hot with smc in the options  unsure.gif


Take your time and you will get there .......NO NEED TO RUSH....it`s not a race.   smile.gif
Good Luck!

Regards.

Rigger66


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GvM

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Falcon Jtag
« Reply #8 on: August 01, 2011, 09:26:00 AM »

haha I'm in xell now!
So all I did is that I changed db1f1 point to dvd_tray like total noob suggested in his topic (which also helped him!)

Thanks rigger66 and thanks to total noob! You're the best in here guys.

Also for those who don't have much experience in soldering but still want jtag first of all I want to suggest
NOT TO USE db1f1 it's easy to fuckup it, and soldering to track in my case didn't made me happy (e79).
Also for those who has problems with soldering transistor/resistor together - just use didode wiring.
I wonder why boxaddr suggests db1f1 - it's a hard one point even skilled guys were pulling it out sad.gif

So this is the point where I put the wire which lead to db1f1.
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GvM

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Falcon Jtag
« Reply #9 on: August 01, 2011, 01:29:00 PM »

Okay the last question from me.
What's the cpu temp on falcon in xexmenu 1.1 ?
For me it shows cpu around 78 and gpu at 50 or 55 when I just started it lol.
I think there is no way to place fans backwards because of the latch isn't it? And I'm sure they are working.
I set it so that stickers on the fan look outside from inside of xbox. Right?  blink.gif
Could it be that xexmenu readings are wrong on 13*** dash?
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GvM

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« Reply #10 on: August 02, 2011, 05:23:00 AM »

well I just tighten the X-clamp screws and now everything is fine.
cpu: 57
gpu 66
ram: 73 (a bit much for a memory thought)
mb: 34
after playing forza 2
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