jtag wrt310n

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redhawk0
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PostPosted: Tue Aug 11, 2009 14:54    Post subject: Reply with quote
I really did it out of necessity...if you look at Miguelpe's picture...when it isn' bent, the motherboard won't fit in the case any longer. The JTAG comes off the front of that Mobo and there just isn't room for it.

But...yeah...I'll admit it...I'm a dd-HO!

redhawk
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fearreality
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PostPosted: Tue Aug 11, 2009 18:10    Post subject: Reply with quote
Here is the post where I documented my errors. See the last two pictures in the post for screenshots of the jtag tool.
http://www.dd-wrt.com/phpBB2/viewtopic.php?p=308980#308980

If that is also what you are getting then use the /fc:19 switch as documented in my detailed procedure here.
http://www.dd-wrt.com/phpBB2/viewtopic.php?p=309054#309054

Also I have modified my case so the jtag can sit out the front.
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redhawk0
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PostPosted: Tue Aug 11, 2009 18:14    Post subject: Reply with quote
nice...this modification to the case also works....good job.

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fearreality
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PostPosted: Tue Aug 11, 2009 18:15    Post subject: Reply with quote
Thanks Razz
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zarf
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PostPosted: Tue Feb 16, 2010 20:54    Post subject: Reply with quote
I have just fixed one bricked wrt310n using jtag method. Router was bricked after v2 firmware was flashed on v1 hardware. Thanks for useful information.

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wrt310n jtag connected
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DSC04028_sm.jpg
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fearreality
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PostPosted: Tue Feb 16, 2010 23:59    Post subject: Reply with quote
Glad to hear you got it working; that's what it's all about. People helping people Smile
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ddggttff3
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PostPosted: Sat Dec 04, 2010 17:17    Post subject: Reply with quote
Can I get some help debricking my wrt310n?

I run jtag -probeonly, and it hangs on Enabling Memory Writes... and won't move. Im using EJTAG version 3.0.1 Tomato-Mod, and my router is a WRT310n V1. Any ideas?
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fggs
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PostPosted: Sat Dec 04, 2010 17:30    Post subject: Reply with quote
Use tjtag3 -probeonly /noemw
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digitlman
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PostPosted: Tue Sep 13, 2011 15:44    Post subject: Reply with quote
I'm bringing this thread back to life because I am trying to de-brick my WRT310N using a JTAG.

As you can see, I have the pins soldered to what I think is the correct spot. My solder job is bad, I know.

I get volts on the pin ends when measured, but not Ohms.

Have I messed this up? I get no response from the program when I run it.

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LOM
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PostPosted: Tue Sep 13, 2011 16:05    Post subject: Reply with quote
digitlman wrote:
I get no response from the program when I run it.


You will always get some response, what is the screen output from tjtag and where does it fail/stop?
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digitlman
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PostPosted: Tue Sep 13, 2011 16:07    Post subject: Reply with quote
Sorry,

the program response is exactly as pictured in PIKETEAM's first message.
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LOM
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PostPosted: Tue Sep 13, 2011 16:24    Post subject: Reply with quote
digitlman wrote:
Sorry,

the program response is exactly as pictured in PIKETEAM's first message.


Many possible errors..

Too long cable
Cable not connected correct (check pin numbers)
Wrong LPT port setting in bios
Win7
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digitlman
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PostPosted: Tue Sep 13, 2011 17:09    Post subject: Reply with quote
Ok, but is it even soldered to the right spot? I have seen conflicting posts that say the JTAG is where I have the connector soldered, and others say it is the pin holes to the left of it.
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LOM
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PostPosted: Tue Sep 13, 2011 17:19    Post subject: Reply with quote
digitlman wrote:
Ok, but is it even soldered to the right spot? I have seen conflicting posts that say the JTAG is where I have the connector soldered, and others say it is the pin holes to the left of it.


The pin holes to the left are apparently for the radio.
You would still get a valid cpu detection even in the wrong connector as someone demonstrated in the beginning of this thread.

All 1's is an error you get when the tjtag hardware is in error.
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digitlman
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PostPosted: Tue Sep 13, 2011 17:24    Post subject: Reply with quote
Ok, I will at the very least verify the parallel port is working.
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