Slim Red Light at Boot

[Statecowboy]

I have a slim I succesfully dumped both nands for (and even booted to dash before the glitch), and now after I soldered the coolrunner it only has a solid red light on the power button. I've desoldered the coolrunner and flashed the original nand image back to the nand in hopes I can at least boot back to stock dash, no luck.

Any ideas?

 

[WalangAlam]

maybe you messed up the cpu_rst (blue wire solder point). had same case. fixed cpu_rst then soldered to the cpu_rst alt point

 

[Statecowboy]

maybe you messed up the cpu_rst (blue wire solder point). had same case. fixed cpu_rst then soldered to the cpu_rst alt point

I dont think so - I've desoldered everything and it looks very clean. How did you fix the cpu_rst point? How did you know something was wrong? Mine looks perfect. But I guess it still could be messed up?

It looks like I have succesfully flashed back the original nand, but it still is just a solid red light. Any help is much appreciated.

 

[WalangAlam]

post pics then of the solder points.
do you have bad blocks in your orig nand?

 

[Statecowboy]

post pics then of the solder points.
do you have bad blocks in your orig nand?

No bad blocks in original nand.

 

[Statecowboy]

I dont know how to upload images, so here's a link to the photo.

http://www.flickr.com/photos/[email protected]/6874107363/in/photostream

 

[H3rmaN]

Have you checked for solder splatter/specs that could be causing a short? Also did you test the console after soldering, but before doing the glitch?

It's always a good idea to test your console boots up after you have soldered everything, but before performing the RGH to ensure nothing has gone wrong during the soldering process. If you had done that then you would have known if it was or wasn't a soldering issue.

 

[Statecowboy]

Have you checked for solder splatter/specs that could be causing a short? Also did you test the console after soldering, but before doing the glitch?

It's always a good idea to test your console boots up after you have soldered everything, but before performing the RGH to ensure nothing has gone wrong during the soldering process. If you had done that then you would have known if it was or wasn't a soldering issue.

Yes I did. I actually flashed the original nand back after I flashed the glitch image just to make sure everything was working, it booted fine. After I installed the coolrunner is when the red light started. As I mentioned, I dont think this is a bad solder job, but just in case, how would I go about repairing the cpu_rst?

I should probably point out - it doesnt seem to be a problem reading or writing to the nand.

 

[esbmaepo]

Are you sure POST_OUT point isn't damaged?

Looks a bit dodgy on your photo. Hard to see though

 

[Statecowboy]

Are you sure POST_OUT point isn't damaged?

Looks a bit dodgy on your photo. Hard to see though

Man, I'm not sure - under the magnifying glass everything looks good, but it seems that it has to be a soldering issue.

Are there any tips for determining if a pad is lifted? Any guides for repairing? I will keep searching, but I'm usually spot on with soldering, maybe I just got heavy handed on this one.

Additional note - I used JTag Tool to do my nand reads and flashes. I've read in some posts that doing it by command line is the only safe way. I suppose I will try to flash the original nand back with command line and see if that makes a difference.

 

[esbmaepo]

Use flux and drop a bit of solder on POST_OUT just to be sure.

Does power brick turn red?

 

[Statecowboy]

Use flux and drop a bit of solder on POST_OUT just to be sure.

Does power brick turn red?

At first the box wouldnt do anything and the brick was red. Then the brick turned orange and when I boot I get the red solid light.

I'll try the flux and solder on the Post_Out.

 

[esbmaepo]

You have a short on the switched power supply, if your console power up for a split second and then shut itself off.

 

[Statecowboy]

You have a short on the switched power supply, if your console power up for a split second and then shut itself off.

Any tips on diagnosing/fixing this?

 

[esbmaepo]

Any tips on diagnosing/fixing this?

What secondary error code do you get?

 

[Statecowboy]

What secondary error code do you get?

I dont get one. It's solid red in the center, the fan doesnt start or anything. When I power on and hold the reset button and press the dvd button, all four green lights flash around the middle center red light.

I keep tapping the reset button and it stays all four flashing green lights around the center red.

 

[esbmaepo]

I dont get one. It's solid red in the center, the fan doesnt start or anything. When I power on and hold the reset button and press the dvd button, all four green lights flash around the middle center red light.

I keep tapping the reset button and it stays all four flashing green lights around the center red.

You must have standby power or else you wouldn't be able to read nand.

So if fan doesn't start could suggest a short on switching power. Try this:

Turn console on, use multimeter and measure J2C3 points for voltage. Most of them should give you 5v.

Does Southbridge get warm under standby power?

 

[Statecowboy]

You must have standby power or else you wouldn't be able to read nand.

So if fan doesn't start could suggest a short on switching power. Try this:

Turn console on, use multimeter and measure J2C3 points for voltage. Most of them should give you 5v.

Does Southbridge get warm under standby power?

Southbridge does not get hot. I measured all of the J2C3 points and only one gave me 5 volts, and a few 3.3 volts.


EDIT- I feel I haven't fully explained how I ended up here.

I originally read my nand with nand-x and JTag tool. Read nand twice and 0 mismatches. I then used 360 multibuilder to build ecc image for my nand, which I flashed. After flashing, I remembered I did not check to see which dash version the console was on, so I reflashed the original nand back, and booted just fine to the stock dash.

After doing this, I flashed the glitchboard (cool runner) and installed it with the wires. This is when all the trouble started. When I first plugged in the console the power brick had a red light on it. I couldnt boot, so I checked all the soldering and tried again, that's what got to me where I'm at now - the console will not boot, the fan won't start, just a red light in the middle of the power button. I've checked and re-checked my soldering, and in the process lifted the pad on the FT3N2 alt point (damn, gotta fix that now - any ideas?).

So, it appears I have some sort of power issue with the console. When I booted to dash, I sat the bare motherboard on finished concrete, but I didnt think that would cause any issues, I've done it a number of times before, maybe dumb luck.

 

[esbmaepo]

Southbridge does not get hot. I measured all of the J2C3 points and only one gave me 5 volts, and a few 3.3 volts.

Okay. Then I'm pretty sure theres no switching power. I believe theres a microcontroller in Southbridge that controls the power. Southbridge is connected to J2C3 for both input and output (3v coming in and 5v coming out). In your case theres nothing coming out.

Whether its Southbridge thats damaged or something else I dont know

 

[WalangAlam]

You can test if you have lifted a pad by testing the soldering points and the connection (maybe scratch the other end) going to them. I got a slim with same case the solder points is no longer connected with the connection going to it. The guy who did the soldering burnt and and just put solder on top without checking for continuity. You may also use the alt points in testing for continuity. But based on your discussions above, it seems its not eh soldering points. You may examine them again though nothing to lose...