jasper 7371 jtag problem

[kawabanga1288]

helo, im trying to do jtag to my xb360 phat

my xbox detail:
jasper 16MB
dashboard 7371
cb 6712

read nand complete.
trying to use boxxdr method

create xell reloaded, write xell, try to boot into xell. but no joy. get e79.

i try to remove all component, write with original nand, and it can boot well to the dashboard.

try to google, and suddenly find this method. http://www.youtube.com/watch?v=TNDFLJm4PEA
what is the different between boxxdr method and the youtube link method?

 

[jsinger47]

E79 simply means your JTAG wiring is bad, or doesn't match the SMC type you've chosen.

Yes, there are multiple ways to wire for JTAG. The easiest by far is the two diode method.

 

[kawabanga1288]

E79 simply means your JTAG wiring is bad, or doesn't match the SMC type you've chosen.

Yes, there are multiple ways to wire for JTAG. The easiest by far is the two diode method.

what do u mean it doesn't match the smc type? where to choose that option?

izzit [FONT=arial, sans-serif]necessary to use jasper 6712 hack.bin when in create xell reloaded? im using the latest ver of jrunner, and when i press the create xell reloaded, im not be able to choose the type of xbox. izzit means that the latest jrunner will be able to choose automatically for us which type we goin to use? [/FONT]

 

[Utmad]

what do u mean it doesn't match the smc type? where to choose that option?

You should complete the template in my sig and post pictures of what you have done too, would be a big help.

 

[JrMods]

If you sure your wiring is good then make sure you have built the nand correctly. If you used the aud clamp wiring method then make sure you checked that little aud clamp box in jrunner. If you didnt use the aud clamp method then dont check that box! I always use the aud clamp method, it seems to work the best on hdmi consoles.

 

[kawabanga1288]

You should complete the template in my sig and post pictures of what you have done too, would be a big help.

sorry...i already remove the component...and try to flash it back to retail....seem ok....
so tomorrow goin to try the diode method. coz looks easy to solder.

any different between boxxdr and diode method? i already google, but not really understand

 

[kawabanga1288]

If you sure your wiring is good then make sure you have built the nand correctly. If you used the aud clamp wiring method then make sure you checked that little aud clamp box in jrunner. If you didnt use the aud clamp method then dont check that box! I always use the aud clamp method, it seems to work the best on hdmi consoles.

my wiring not very good i think becoz is hard to solder the transistor and resistor...:frown:
already remove all.

so can i try with 2 diode method? any different?

 

[Utmad]

Yes either method is good, just take your time not to damage anything.

 

[kawabanga1288]

izzit necessary to use jasper 6712 hack.bin when in create xell reloaded?

im using the latest ver of jrunner, and when i press the create xell reloaded, im not be able to choose the type of xbox. izzit means that the latest jrunner will be able to choose automatically for us which type we goin to use?

 

[gavin_darkglide]

It doesn't matter how u wire it.(aud_clamp or regular wiring, the only difference is where you solder 1wire) aud_clamp is better on HDMI models.The trick is creating the xcell image correctly. If using aud_clamp wiring, then click the aud_clamp check box when creating xell. If not don't click the check box. It is simple. If all else fails check the value of tms/tdi against gnd it should be 1.5k ohms.

 

[kawabanga1288]

It doesn't matter how u wire it.(aud_clamp or regular wiring, the only difference is where you solder 1wire) aud_clamp is better on HDMI models.The trick is creating the xcell image correctly. If using aud_clamp wiring, then click the aud_clamp check box when creating xell. If not don't click the check box. It is simple. If all else fails check the value of tms/tdi against gnd it should be 1.5k ohms.

after try with 2 diode method, still no joy. still get e79 error

dis is my jrunner log
J-Runner v0.3 Beta (4) Started




WARNING! - Your selected working directory already contains files!
You can view these files by using 'Show Working Folder' Button




Checking Files
Finished Checking Files
Checking Console..
Version: 03
Flash Config: 0x00023010
00023010
Trinity, Jasper 16MB
CB Version: 6712
Jasper 16MB
Initializing nanddump1.bin..
Jasper 16MB
Jtag Selected
Nand Initialization Finished
Comparing...
Nands are the same
XeLL file created Successfully jasper.bin
Version: 03
Flash Config: 0x00023010
Writing Nand
jasper.bin
Done!
in 0:09 min:sec



no idea now. what i have to do?
and how to check check the value of tms/tdi against gnd?

tested with multimeter the point againts gnd.
J2D2.1 1.5k
J2D2.2 around 200 ohm i think.
so what i have to do now?

 

[Utmad]

Use aud_clamp method instead.

 

[kawabanga1288]

Use aud_clamp method instead.

aud clamp method means i have to use boxxdr method?

or just change the j2d2.2 with diode from light of ring alternate point to the right hand leg of Q2N1?

 

[Martin C]

You're using TRAY_OPEN.

Read this, in particular #1:

[h=1](R-)JTAG Troubleshooting once past POST 0x2E[/h]

 

[kawabanga1288]

You're using TRAY_OPEN.

Read this, in particular #1:

(R-)JTAG Troubleshooting once past POST 0x2E

Martin, so u mean i have to remove the diode from the position RoL and solder to the right hand leg of Q2N1? correct me if i was wrong.

 

[Martin C]

Look at the JTAG install images in J-Runner. Those are the ones you should be using. As per my sticky, one goes to DB1F1 and the other to either RoL (for normal SMC) or AUD_CLAMP (for AUD_CLAMP SMC).

 

[kawabanga1288]

Look at the JTAG install images in J-Runner. Those are the ones you should be using. As per my sticky, one goes to DB1F1 and the other to either RoL (for normal SMC) or AUD_CLAMP (for AUD_CLAMP SMC).

im not really understand. the image in jrunner using jtag kit. but i dun have it. so does it means if i dun have the jtag kit, i just connect directly from j2d2.1 to the db1f1 using wire and j2d2.2 to aud_clamp without any extra component, without any briging j2d2.7 and j2d2.3?

 

[Martin C]

No, you need to follow normal JTAG wiring diagram including any bridging if required.

So either diodes and bridge, or boxxdr method. either will work.

 

[gavin_darkglide]

J2D2.2 should also be 1.5k ohm, not 200 ohm. If it is 200 ohm, this is more than likely the problem. I would attempt reflowing/reballing/replacing the GPU, if you have the tools for it, if not install rgh1. TMS/TDI arent needed for anything other than jtag hack. RGH1 should work with out updating, but to be on the safe side, update to no later than 13699.

 

[Utmad]

aud clamp method means i have to use boxxdr method?

or just change the j2d2.2 with diode from light of ring alternate point to the right hand leg of Q2N1?

Yes move to the Q2N1 leg and then use AUDCLAMP from Jrunner