Pin shorting.. Lets talk

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barryware
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PostPosted: Tue Jul 28, 2009 3:02    Post subject: Pin shorting.. Lets talk Reply with quote
Everyone, or most everyone knows I fix router for fun, not for money. It kills time and it allows me to sharpen up my skills with new equipment.

Most, also know that if a pin short was attempted, I am not interested in wasting my time.

Attached is a pic of a perfectly good router that was ruined by a pin short attempt.

Jtag could have fixed this device. Now it is junk.

Summery: DO NOT PIN SHORT.

I realize that the prior technician working on this unit could have used a more "delicate touch". Irregardless, pin shorting junked this device.

If you look closely, you can also see that the traces on the pcb have been scratched and damaged.

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Murrkf
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PostPosted: Tue Jul 28, 2009 3:17    Post subject: Reply with quote
Geez BW....I TOLD you I was sorry and wouldn't do it again! Embarassed


Laughing

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barryware
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PostPosted: Tue Jul 28, 2009 3:21    Post subject: Reply with quote
Murrkf wrote:
Geez BW....I TOLD you I was sorry and wouldn't do it again! Embarassed


Laughing


"Bailiff... Whack his pee pee" (cheech & chong late 60's I think) Razz

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Radioman193
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PostPosted: Tue Jul 28, 2009 3:34    Post subject: Reply with quote
if your going to short pins At least find out what pins are what lol

i had a old wrt54g that was "dead" and i started to short the bios pins and well it came back to life.
Cool that was a few years agao i think that was the start of the pin 15 and 16 thing.

But Im Not saying to short Pins! I was trying to make it smoke :lol:

BTW it is still working to this day Very Happy

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Last edited by Radioman193 on Tue Jul 28, 2009 5:16; edited 1 time in total
yoshamano
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PostPosted: Tue Jul 28, 2009 3:50    Post subject: Reply with quote
Delicate touch indeed, lol. What'd they try to short the pins with, a butter knife!?
barryware
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PostPosted: Tue Jul 28, 2009 3:55    Post subject: Reply with quote
Radioman193 wrote:
if your going to short pins Atleast find out what pins are what lol

i had a old wrt54g that was "dead" and i started to short the bios pins and well it came back to life.
Cool that was a few years agao i think that was the start of the pin 15 and 16 thing.

But Im Not saying to short Pins! I was trying to make it smoke :lol:

BTW it is still working to this day Very Happy


You are the man!

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Murrkf
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PostPosted: Tue Jul 28, 2009 3:57    Post subject: Reply with quote
Everyone knows you have to use a steak knife. Serrated edged. Otherwise, it won't do irreversible damage quite the right way.

BW's point is, of course, that jtag works an pin shorting is a hack. Of course, I never did PM that guy that says "PM for pin shorting instructions" or something.....maybe we're all just doing it wrong. Razz

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Radioman193
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PostPosted: Tue Jul 28, 2009 3:58    Post subject: Reply with quote
Not good
LOL LOL LOL LOL

try a sewing needle Rolling Eyes



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barryware
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PostPosted: Tue Jul 28, 2009 4:09    Post subject: Reply with quote
Radioman193 wrote:
Not good
LOL LOL LOL LOL

try a sewing needle Rolling Eyes


Sorry daddio... Vcc is pin 37 on the other end of the chip. Not positive off the top of my head though but pretty close I think.

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Radioman193
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PostPosted: Tue Jul 28, 2009 4:18    Post subject: Reply with quote
Pin shorting will get you this !!!

Don't Do It!!!!!!!
BTW it was not me it was one that was given to me thay sed thay tryed all thay could but cant get it to work..................

LOL I wounder why............
it might have something to do with that BIG Burnt hole in the cpu???????????? Rolling Eyes


Cool



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"HOLLY" S#!^ !!!!!!
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Note The BIG hole!!
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Last edited by Radioman193 on Tue Jul 28, 2009 5:17; edited 1 time in total
Radioman193
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PostPosted: Tue Jul 28, 2009 4:29    Post subject: Reply with quote
barryware wrote:
Radioman193 wrote:
Not good
LOL LOL LOL LOL

try a sewing needle Rolling Eyes


Sorry daddio... Vcc is pin 37 on the other end of the chip. Not positive off the top of my head though but pretty close I think.

you have 3v on that cap i just tested it
thay toutch the cap while sliding the knife or Screwdriver over the pins next to it well No more needs to be mentioned............"or over pins 10 to 15"



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Pin #15 = + 3 volt
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Last edited by Radioman193 on Tue Jul 28, 2009 6:35; edited 8 times in total
barryware
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PostPosted: Tue Jul 28, 2009 4:38    Post subject: Reply with quote
Radioman193 wrote:

you have 3v on that cap i just tested it
thay toutch the cap while sliding the knife over the pins next to it well nomore needs to be sed............


You're a good speller Laughing

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Radioman193
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PostPosted: Tue Jul 28, 2009 4:40    Post subject: Reply with quote
"better"?
:D

Am i wrong..............?
lol

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barryware
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PostPosted: Tue Jul 28, 2009 4:47    Post subject: Reply with quote
Radioman193 wrote:
barryware wrote:
Radioman193 wrote:
Not good
LOL LOL LOL LOL

try a sewing needle Rolling Eyes


Sorry daddio... Vcc is pin 37 on the other end of the chip. Not positive off the top of my head though but pretty close I think.

you have 3v on that cap i just tested it
thay toutch the cap while sliding the knife over the pins next to it well no more needs to be sed............


What data sheet you looking at? 5th pin over from pin 10 (which is the white mark on the pcb) is pin 15. Pin 15 is ry/by#.

The say to short pin 15 an 16 (or maybe it is 16 & 17, donno, never did it). So how can you short pin 15 if it is vcc?

Doesn't matter... This thread was about not shorting pins and why, not to debate about what pin is what.

Very well... Carry on....

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Radioman193
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PostPosted: Tue Jul 28, 2009 4:54    Post subject: Reply with quote
Test it
Want video???
lol

it looks like a Verry Unhappy wrt300n v1.0

Unless thay HELD the knife on the pins for along time you shuld be able to bring it back to life
it might have done a TOTAL whipe of the flash chip.
that would depend on what pins thay stayed on .


have you tryed to jtag it at all?

if it dont just replace the Flash rom chip thats cheeper than a new N router.


oh BTW
I don't profess to be perfect

The pictures are bad .. Its hard to test the pins on the flash ic and run a camera.



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Pin 15 test 1
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