Corona V2 4gb Nand dump fail with home made SD card reader rig

M

Menethoran

VIP Member
Sep 1, 2012
339
0
Reading, PA
Hi guys... Hoping to get some help. Have a Corona V2 4GB running dash 16202 (This alone may very well be my problem.. not sure). Anyway, Ive fried 2 SD card readers attempting this, and I cant, for the life of me.. figure out why (I will apologize in advance for the less than stellar solder job on pins 2 3 4 and 5 on the SD card reader (Hard navigation with a soldering iron between the plastic casing and the USB port...) Anyway, here are pics:

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102423_zps80071dd6.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102403_zps8b33c74b.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102349_zps5b8249fd.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102332_zps4cffcec1.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102315_zps1b0bc9f3.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102251_zpsb79f1d77.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102239_zps181472e4.jpg

So... Basically, I hook everything up the first time, and then plug the SD card reader into my PC... it sees SOMETHING... a physicaldrive1 or something and shows a size of 0.. try to read, J runner gives an error of wrong size. So, I figured I buggered something up. Tear down and rebuild... Same effect. Tear everything down and plug the reader into my PC with an SD card in it... The pc sees the reader but not the card. So, I buy another (Targus High Speed SD/SDHC/MMC Micro SD/T-F Card reader/writer).

Get home with the second one (TEST it first :) Works fine on PC with SD card in it)... wire it up, try to read the nand.. SAME issue as before, disassemble and plug into my PC with an SD card... Dead. WTF am I doing wrong? Like i said, my soldering on 2,3,4 and 5 is not great, but everything is solid and nothing is touching. Soldering on the board is decent... havent cleaned the flux yet, but i dont really want to go scrubbing around in there til im all done...

Using a rosin flux, standard solder (I think 98%). 30 watt soldering iron. Going off of the PDF instructions (Found somewhere here in the forums.. not sure the link anymore).

Has anyone had an issue like this before and if so... What was done to solve it? Or am I just doing this all wrong?

Please refrain from commenting on the solder job on the SD card reader (pins 2 3 4 and 5...)... Any other bashing of my solder skills, I accept if they are bad :)
 
U

uN0pEn

Noob Account
Jun 11, 2011
9
0
Its just about impossible to trace those wires for you in the pictures. Take new ones close up of both the sd reader and the motherboard points in the same pic and try spacing out the wires so the connection points can be seen clearly.
 
n1ght0wl

n1ght0wl

BANNED
Nov 30, 2011
799
0
London
just buy yourself the QSB's and save yourself the headache, then if it dont work come back and ask for support :)
 
M

Menethoran

VIP Member
Sep 1, 2012
339
0
Reading, PA
n1ght0wl said:
just buy yourself the QSB's and save yourself the headache, then if it dont work come back and ask for support :)
Click to expand...
While I have no issue with buying the products offered by TX... I am impatient... and do not want to wait for it to arrive :) (Just ordered a set from modchipcentral... :)

As for my wiring... it's been undone. I will repost pics of my third SD reader later on this evening. I'm wondering if the issue was with the SD/MicroSD shared system...
Also thinking it MIGHT be the brand...

As for tracing my wires... They are wired where they belong... I was hoping it was something blatently obvious. (Tonight I will use different colored wires so it's easier to follow...)
 
n1ght0wl

n1ght0wl

BANNED
Nov 30, 2011
799
0
London
wow them pads will take a hammering whilst your waiting for your QSB kit to arrive.. i hope you dont lift any of them in the mean time :p
 
n1ght0wl

n1ght0wl

BANNED
Nov 30, 2011
799
0
London
Menethoran said:
So.. about ACTUAL help...?
Click to expand...
i gave you actual help... dont do any more damge to the solder points then install the QSB kit when you receive it. if you need further help the post again:D
 
C

ConsoleMoDs

Full Member
Dec 12, 2013
32
0
Menethoran said:
Hi guys... Hoping to get some help. Have a Corona V2 4GB running dash 16202 (This alone may very well be my problem.. not sure). Anyway, Ive fried 2 SD card readers attempting this, and I cant, for the life of me.. figure out why (I will apologize in advance for the less than stellar solder job on pins 2 3 4 and 5 on the SD card reader (Hard navigation with a soldering iron between the plastic casing and the USB port...) Anyway, here are pics:

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102423_zps80071dd6.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102403_zps8b33c74b.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102349_zps5b8249fd.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102332_zps4cffcec1.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102315_zps1b0bc9f3.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102251_zpsb79f1d77.jpg

http://i1326.photobucket.com/albums/u645/Menethoran/IMG_20130105_102239_zps181472e4.jpg

So... Basically, I hook everything up the first time, and then plug the SD card reader into my PC... it sees SOMETHING... a physicaldrive1 or something and shows a size of 0.. try to read, J runner gives an error of wrong size. So, I figured I buggered something up. Tear down and rebuild... Same effect. Tear everything down and plug the reader into my PC with an SD card in it... The pc sees the reader but not the card. So, I buy another (Targus High Speed SD/SDHC/MMC Micro SD/T-F Card reader/writer).

Get home with the second one (TEST it first :) Works fine on PC with SD card in it)... wire it up, try to read the nand.. SAME issue as before, disassemble and plug into my PC with an SD card... Dead. WTF am I doing wrong? Like i said, my soldering on 2,3,4 and 5 is not great, but everything is solid and nothing is touching. Soldering on the board is decent... havent cleaned the flux yet, but i dont really want to go scrubbing around in there til im all done...

Using a rosin flux, standard solder (I think 98%). 30 watt soldering iron. Going off of the PDF instructions (Found somewhere here in the forums.. not sure the link anymore).

Has anyone had an issue like this before and if so... What was done to solve it? Or am I just doing this all wrong?

Please refrain from commenting on the solder job on the SD card reader (pins 2 3 4 and 5...)... Any other bashing of my solder skills, I accept if they are bad :)
Click to expand...
Can you make this,, with the color to the board, or a number of the points,, ??? to solder to the board ??
 
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