Could anyone help me check if the solder joints are in the correct places?

zphingphong

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Jan 5, 2014
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Vancouver, Canada
TX Product(s) used: SLIM PROTO V2, Corona 4GB NAND RW KIT V4
Console Type: Corona V2 (360s)
NAND size: 4GB
Dashboard version: Retail
CB version: -
Screenshot of NAND details from J-Runner:
View attachment 27697



J-Runner log:

Code:
[FONT=courier new]===================================================[/FONT]


===================================================
August 3, 2014 3:42:01 AM


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


===================================================
August 3, 2014 3:53:15 AM


J-Runner v0.3 Beta (4) Started






Checking Files
Finished Checking Files
Corona 4GB Manually Selected
===================================================
August 3, 2014 3:54:16 AM


J-Runner v0.3 Beta (4) Started






Checking Files
Finished Checking Files
RGH Selected
RGH2 Selected
Corona 4GB Manually Selected


Failed to get DiskGeometry.


===================================================
August 3, 2014 4:13:55 AM


J-Runner v0.3 Beta (4) Started




Checking Files
Finished Checking Files
Corona 4GB Manually Selected


Failed to get DiskGeometry.


Failed to get DiskGeometry.


Failed to get DiskGeometry.
RGH2 Selected


Failed to get DiskGeometry.


Images of close-up soldering to motherboard:





Description of problem: I cannot read NAND from the SD card from TX Corona 4GB NAND RW Kit V4. J-Runner says "Failed to get DiskGeometry." I tried fiddling with the solder so many times. Could anyone check if the rest of the solder joints are in the right places.


Was the console working before you started: Y


Do you get a green debug light appear on the RGH chip every 4-5 seconds: No.


How long is the light on for each time: -
 

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BrockThunderjam

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Jun 25, 2013
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Is the 4GB kit set to R/W? Also, I assume you have power plugged in but thought I'd confirm.
 
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Oggy

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Where is 5vcc going?
 

zphingphong

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Jan 5, 2014
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It's obvious you didn't use flux.

I did, actually. But I think I didn't use it properly. I just use a q-tip to damp the flex on the joints. It's probably all over the place. :-(

My console doesn't even boot into stock NAND now. When I press the start button, it just beeps once and nothing happened. The fan doesn't even run. No LED light on the power switch either.Any idea? Did I miss any solder joints?
 

BrockThunderjam

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zphingphong

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Jul 19, 2014
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Sorry, this might sound like a stupid question, but how do I know if it's set to R/W?
I tried a few SD card readers. If it doesn't work at the end, I'll go out and buy the one you suggested.

Thanks!

Slather the QSB joints in flux and reflow. Make sure soldering iron tip is clean and tinned. Don't be afraid to use plenty of flux. Flux is key.

http://www.youtube.com/watch?v=I_NU2ruzyc4

Hope this helps. Good luck!
 

jligg

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Mar 16, 2011
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Cincinnati Ohio
Look8ng at your 4gb rw kit I see 3 joints that possibly arent making contact and also looks as 13 and 14 are slightly bridged
 

N.E.Modz

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Look8ng at your 4gb rw kit I see 3 joints that possibly arent making contact and also looks as 13 and 14 are slightly bridged
totally agree, Sorry but it looks like birdshit. I would use some desolder braid, take off all solder and remove qsb. clean mobo contacts with fibreglass pen and clean using a qtip and some isopropyl.
Put qsb in place and layer loads of flux on the contact points. Add some solder to the tip of iron when hot and touch contacts, the solder should flow (add extra solder if necessary) :redface:
 

BrockThunderjam

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Jun 25, 2013
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Sorry, this might sound like a stupid question, but how do I know if it's set to R/W?
I tried a few SD card readers. If it doesn't work at the end, I'll go out and buy the one you suggested.

Thanks!
On the micro USB part there is a switch.
 
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Krafter

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Apr 17, 2011
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Flux is key.
I have to disagree with that. Flux isn't key. Flux is a necessary tool and skill is the key. One can use all of the best flux in the world but without skill its useless. Skill comes with practice, experience, being mechanically inclined and perhaps the most important, having some common sense.
 
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zphingphong

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Jan 5, 2014
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Vancouver, Canada
Thanks for all the suggestions guys, but after some troubleshooting (removing QSB, testing each joint at a time), turns out my problem has something to do with the far end joint. The one that's separate our from others joints. Whenever I solder it, my console cannot boot (even to stock ROM), like I described earlier. When I take that one joint out everything works like normal. Have anyone had this issue before with Corona v2? Does anyone know what that particular connection does? Is it power?

I've done a couples RGH on Corona v6, but I'm totally a noob on v2 (actually, still a noob to the whole thing). Not that I don't agree that my soldering skill sucks, but that's just the best I can do, and it has been working fine so far. I'd like to find someone to RGH for me though, but I'm in Vancouver, Canada. The only guy that offer the service, can only RGH anything manufactured before August 2011. :frown:


Thanks again guys.
 
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zphingphong

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Jan 5, 2014
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Vancouver, Canada
On the micro USB part there is a switch.

It's set to R/W. I saw your old thread on http://team-xecuter.com/forums/showthread.php?t=138454. I'm having a similar issue with the R/W kit. JRunner just shows a blank drive. Another thing I notice is if I connect the one pad at the end(circled red in the image), my console will not power up.



Base on this diagram, that pad isn't required to be connected. I assume it's a ground. So, that doesn't have any thing to do with the fact that I can't read the NAND. Is my understanding correct? If so, what do you suggest I should try?



Thanks!
 

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jligg

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Mar 16, 2011
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Cincinnati Ohio
Hey I have had a v2 act like this a while back. Solder a wire from the point boxed in red to a gnd on av port or something then try and read your nand. Worked for me
 
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zphingphong

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Jan 5, 2014
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Vancouver, Canada
Hey I have had a v2 act like this a while back. Solder a wire from the point boxed in red to a gnd on av port or something then try and read your nand. Worked for me

Thanks man. That works. It boots to original ROM. However, it still doesn't read the NAND :frown: I traced all the points on the board to the QSB. Everything connects, and no short. I removed and re-connected them so many times now. No luck. I even started to think the QSB is broken. I try another QSB, no go either. I've done this a few times on v6, never have these many problem. Is there a trick for v2?

I wanted to try to follow this thread, but I doubt it's going to help. Plus those alternative points are way smaller than the these regular points.


Help?
 

madpie2010

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Jan 9, 2014
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i think the problem is your connection to your pc not noticing your usb connection .i would start there before any thing alse :rolleyes2: