Plan to fixing my Hynix Wii U

Tbone182b

Tbone182b

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So, I've got one of the Hynix Wii U's (32GB) that started failing a few months ago. Back then, I was unaware of the emmc failing over time, and thought I broke it myself somewhere in the distant past (hadn't used it for about 2 years). Only after I went through a firmware install upgrade that went bad (hoping to fix corrupted files) and a "no more HDMI output" (as a result of the firmware upgrade going wrong), I found out about the emmc degradation now widely known.
Long story short, I've got a Wii U that can boot and run games off a external HDD, but will fail when using (most) stuff on the emmc. Hence I wanted to try my luck and replace the emmc with an SD card as some managed to do.

Steps done:
  • Make sure I can boot the Wii U
  • Dump the OTP, SEEPROM, SLC and MLC using recovery_menu (UDPIH) - see attached mlc.log for errors
  • Crawl through the log, listing all errors (codes -0003001B, -30015 and -30041)
  • Identify all titles involved (question #1: I couldn't find anything on the two highlighted saves - are those save to be removed?) :
    • /sys/title/00050010/10044200 texture atlas for gamepad (tv remote)
    • /sys/title/00050010/1004b200 Account Settings
    • /sys/title/00050010/1004c200 Daily Log
    • /sys/title/00050010/1005a200 Wii U Chat
    • /sys/title/00050030/1001520a Friend List
    • /sys/title/00050030/1001620a Miiverse
    • /sys/title/00050030/10017209 Wii U Electronic Manual "Error"
    • /sys/title/00050030/1001920a Miiverse Post All
    • /sys/title/00050030/1006d20a amiibo Settings
    • /usr/save/00050000/1011b000 Disney Epic Mickey 2
    • /usr/save/00050000/10149600 Wii KARAOKE U by JOYSOUND
    • /usr/save/00050030/10014200 UNKNOWN
    • /usr/save/system/pdm/80000001 Play data manager
    • /usr/title/00050000/10105a00 Netflix
    • /usr/title/00050000/10113800 Zen Pinball 2
    • /usr/title/00050000/1012be00 PIKMIN 3
    • /usr/title/00050000/10144e00 Wii Sports Club
    • /usr/title/00050000/10149600 Wii KARAOKE U by JOYSOUND
    • /usr/title/00050000/10159a00 Wii Fit U (promo)
    • /usr/title/00050000/10179c00 Dr Kawashima's Brain Training How Old Is Your Brain?
    • /usr/title/0005000e/10102100 Nintendo Land
    • /usr/title/0005000e/1010ed00 MARIO KART 8
    • /usr/title/0005000e/1010ef00 ZombiU
    • /usr/title/0005000e/10111f00 Sonic & All-Stars Racing Transformed
    • /usr/title/0005000e/10113800 Zen Pinball 2
    • /usr/title/0005000e/1012be00 PIKMIN 3
    • /usr/title/0005000e/10144e00 Wii Sports Club
    • /usr/title/0005000e/10159a00 Wii Fit U (promo)
  • Download all sys-titles through JNUStool (encrypotd)
  • Order stuff for a NAND-AID surgery:
    • NAND-AID pcb
    • soldering wire
    • a 9pin Micro SD card socket
    • a strip of 100x 0805 50V 10uF capacitators (only needed one, but could use a few sapres...)
    • Kapton tape (not explicitly needed, but just to be sure everything in insulated)
    • a SanDisk 32GB Micro SD Max Endurance
I still have a few weeks for all parts to be delivered, so I had some time to work out my plan, which I'd like to have validated by some of you:
  • Desolder the extra capacitor on the Wii U board to make room for the NAND-AID, cover the space with solder (question #2: this needs to be connected after desoldering?)
  • Solder the NAND-AID in place:
    • Start with the GND under the future SD socket:
    • Solder D2, D1, etc on the left leg, CK to be soldered on both sides
    • Scratch the CK (question #3: what with? Would a simple hobby knife do?)
    • Solder the SD socket on top (question #4: insultation needed between socket and soldered GND?)
  • Insert SD card (question #5: how do I flash my MLC dump to the SD card, or is that done through the Wii U at a later point? Simply "copy /b" together all parts, then write with Win32Diskimager to SD card?)
  • Boot alternative recovery_menu (with batch WUP installer) through UDPIH and start the WUP-server
  • Run the following (one by one, validating the result) to remove corrupted titles and saves:
Code: 
w.cd("/vol/storage_mlc01")
w.mkdir("corrupted", 0")
w.mv("usr/save/00050000/1011b000/user", "corrupted/01")
w.mv("usr/save/00050000/10149600/user", "corrupted/02")
w.mv("usr/save/00050030/10014200/user", "corrupted/03")
w.mv("usr/save/system/pdm/80000001/user", "corrupted/04")
flush_mlc()

delete_title("/vol/storage_mlc01/usr/title/00050000/10105a00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10113800", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/1012be00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10144e00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10149600", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10159a00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10179c00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10102100", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1010ed00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1010ef00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10111f00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10113800", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1012be00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10144e00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10159a00", 0)
flush_mlc()
  • Install all downloaded SYS-titles (9 in total)
  • ...pray to God, restart Wii U and hope everything is working (obviously after running the MLC-checker once more to be sure I didn't miss anything)
I hope that's all, or did I miss anything?
 

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Last edited by Tbone182b,
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Tbone182b said:
  • Dump the OTP, SEEPROM, SLC and MLC using recovery_menu (UDPIH) - see attached mlc.log for errors
Click to expand...
Did you run the mlc_checker first or the slc+mlc dump?
If you ran it before I no new corruption appeared in between. You are lucky, there are no corrupted directories.
If you did run the mlc_checker after the dump or booted the wii u otherwise after the dump, you will have to do the dump again.
I would also recommend that you run wfs-extract over the the (merged) mlc dump to see if the errors line up.
Also I would recommend to run mlc_checker again, after doing the replacement.
Tbone182b said:
  • /usr/save/00050030/10014200 UNKNOWN
Click to expand...
I think that has something to do with the eshop. It should be safe to delete at least the corrupted file you have.
Tbone182b said:
  • /usr/save/system/pdm/80000001 Play data manager
Click to expand...
Should be also save to delete the corrupted file. I see there is a second user on the Wii U. If the first one is broken you might have to use the second one. But I don't think that removing the corrupted files would cause problems.
Tbone182b said:
  • Desolder the extra capacitor on the Wii U board to make room for the NAND-AID, cover the space with solder (question #2: this needs to be connected after desoldering?)
  • Solder the NAND-AID in place:
    • Start with the GND under the future SD socket:
    • Solder D2, D1, etc on the left leg, CK to be soldered on both sides
    • Scratch the CK (question #3: what with? Would a simple hobby knife do?)
Click to expand...
i would recommend to cut the clk trace before soldering the NAND-AID. You would need some sharp precision knife for that. Also cut towards the GND plane and not towards the other signals, in case you slip.

Tbone182b said:
    • Solder the SD socket on top (question #4: insultation needed between socket and soldered GND?)
Click to expand...
I just made sure the top of the GND joint is flat, but never insulated it. If you have some spike it could interfere, but then also the slot wouldn't lay flush. Just use enough flux and make sure it is flat. Extra insulation would cause it to no longer lay flat and could make soldering harder.

Tbone182b said:
  • Insert SD card (question #5: how do I flash my MLC dump to the SD card, or is that done through the Wii U at a later point?
Click to expand...
Depends on your OS and your cardreaders capabilities. Ideally you would have linux and a card reader, which detects the SD as mmcblk. Then you would first run a blkdiscard on the card and cat all the parts together and dd it with conv=sparse to the SD. So the the sdcards internal controller knows which blocks are unused and can work more efficient and you don't need to write blocks that are all zero. If you can't do the discard thing.

Tbone182b said:
  • Simply "copy /b" together all parts, then write with Win32Diskimager to SD card?)
Click to expand...
Yes, that's how you would do it on windows. That works but it is not as nice to the SD, as that also writes all the zero blocks.
Tbone182b said:
Code: 
w.cd("/vol/storage_mlc01")
w.mkdir("corrupted", 0")
w.mv("usr/save/00050000/1011b000/user", "corrupted/01")
w.mv("usr/save/00050000/10149600/user", "corrupted/02")
w.mv("usr/save/00050030/10014200/user", "corrupted/03")
w.mv("usr/save/system/pdm/80000001/user", "corrupted/04")
flush_mlc()

delete_title("/vol/storage_mlc01/usr/title/00050000/10105a00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10113800", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/1012be00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10144e00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10149600", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10159a00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10179c00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10102100", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1010ed00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1010ef00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10111f00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10113800", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1012be00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10144e00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10159a00", 0)
flush_mlc()
  • Install all downloaded SYS-titles (9 in total)
  • ...pray to God, restart Wii U and hope everything is working (obviously after running the MLC-checker once more to be sure I didn't miss anything)
I hope that's all, or did I miss anything?
Click to expand...
I wouldn't bother with all the user stuff in the recovery. Just reinstall the system titles. If that works, you should be able to use the data management to delete the user stuff. You can then also use FTP to deal with the broken system saves.
 
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Tbone182b

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Thanks for the swift reply. I'll modify my steps accordingly.

As for my last remaining question (for now :ph34r:): when removing the extra (obsolete?) capacitor, do I just apply heat, take it off and smear the remaining pad with solder to ensure a connection isstill there?

SDIO said:
Did you run the mlc_checker first or the slc+mlc dump?
If you ran it before I no new corruption appeared in between. You are lucky, there are no corrupted directories.
If you did run the mlc_checker after the dump or booted the wii u otherwise after the dump, you will have to do the dump again.
Click to expand...
Dump was made first, checker was done straight after (only a reboot through UDPIH for a different recovery_menu). Nonetheless, I'll dump and check again (see if the results are the same)

SDIO said:
Yes, that's how you would do it on windows. That works but it is not as nice to the SD, as that also writes all the zero blocks.
Click to expand...
That's not necessarily a problem, right? It just takes longer and allocated space that's actually unused, but won't lead to the Wii U acting differently?
 
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Tbone182b said:
only a reboot
Click to expand...
And that reboot changed the SLC cache, invalidating the dump. It's really important to not turn the console on between taking the dump and replacing the eMMC with the SD card. So take a new dump and check this new one with wfs-extract.

Tbone182b said:
That's not necessarily a problem, right?
Click to expand...
I would say it's a minor issue. A Wii U which has been used much might have almost no zeroed blocks anyway thanks to the encrypted nature of the filesystem but even if it has the speed and lifetime difference might be next to nothing.

Tbone182b said:
do I just apply heat, take it off and smear the remaining pad with solder to ensure a connection isstill there?
Click to expand...
Sounds correct to me but don't short the two pads (IIRC the capacitor sits between 5 V and GND).
 
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skawo

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For the smd capacitor, personally I just twist them off. It seems scary but has always worked for me perfectly.
 
Tbone182b

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V10lator said:
And that reboot changed the SLC cache, invalidating the dump. It's really important to not turn the console on between taking the dump and replacing the eMMC with the SD card. So take a new dump and check this new one with wfs-extract.
Click to expand...
This got me confused: I have two different payloads, one to run the mlc_checker and one to dump the SLC & MLC. A reboot is needed to switch between the two payloads, unless I'm missing something?

On a sidenote: ran both wfs-extract on the original dump. Found 1 extra title (Wii U Electronic Manual) and one save (Mario Kart) that popped up - added both to my intended actions.

Also ran MLC checker again this morning (just finished) and reconciled the results against the original results:
  • no new corrupted titles in the new check results
  • funny enough the new results show files as "ok" that failed before (e.g. the files under "usr/save/system/pdm/80000001/user" - unstable MLC?)
I also tried dumping the MLC and SLC again as instructed, but the MLC failed unmounting (error fffcffeb). Will retry later, as it's dumping the SLC now, and see if it picks it up then.
[edit] Apparently it retries after dumping the SLC, MLC is being dumped now again


skawo said:
For the smd capacitor, personally I just twist them off. It seems scary but has always worked for me perfectly.
Click to expand...
Wait, just twist it off, and be done? As in, no need to connect both ends after taking it off?
 
Last edited by Tbone182b,
Tbone182b

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Post-new dumps: all fine, same results as before (also checked through wfs-extract).
Guess the long wait for materials commences
 
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Tbone182b said:
A reboot is needed to switch between the two payloads
Click to expand...
Correct, that's why you check before you dump and after you replaced with the SD card but not in between. ;)

Tbone182b said:
Found 1 extra title
Click to expand...
Tbone182b said:
show files as "ok" that failed before
Click to expand...
I would ignore that for now and do a new MLC check after the SD card is in place + the previous corruptions have been fixed.

Tbone182b said:
the MLC failed unmounting
Click to expand...
For now that dump seems to be fine but next time wait a minute after booting the recovery menu but before starting the dump.

Tbone182b said:
no need to connect both ends after taking it off?
Click to expand...
That would be catastrophic, again:
V10lator said:
don't short the two pads (IIRC the capacitor sits between 5 V and GND)
Click to expand...
You don't want to short 5 V and GND !
 
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Tbone182b said:
So, I've got one of the Hynix Wii U's (32GB) that started failing a few months ago. Back then, I was unaware of the emmc failing over time, and thought I broke it myself somewhere in the distant past (hadn't used it for about 2 years). Only after I went through a firmware install upgrade that went bad (hoping to fix corrupted files) and a "no more HDMI output" (as a result of the firmware upgrade going wrong), I found out about the emmc degradation now widely known.
Long story short, I've got a Wii U that can boot and run games off a external HDD, but will fail when using (most) stuff on the emmc. Hence I wanted to try my luck and replace the emmc with an SD card as some managed to do.

Steps done:
  • Make sure I can boot the Wii U
  • Dump the OTP, SEEPROM, SLC and MLC using recovery_menu (UDPIH) - see attached mlc.log for errors
  • Crawl through the log, listing all errors (codes -0003001B, -30015 and -30041)
  • Identify all titles involved (question #1: I couldn't find anything on the two highlighted saves - are those save to be removed?) :
    • /sys/title/00050010/10044200 texture atlas for gamepad (tv remote)
    • /sys/title/00050010/1004b200 Account Settings
    • /sys/title/00050010/1004c200 Daily Log
    • /sys/title/00050010/1005a200 Wii U Chat
    • /sys/title/00050030/1001520a Friend List
    • /sys/title/00050030/1001620a Miiverse
    • /sys/title/00050030/10017209 Wii U Electronic Manual "Error"
    • /sys/title/00050030/1001920a Miiverse Post All
    • /sys/title/00050030/1006d20a amiibo Settings
    • /usr/save/00050000/1011b000 Disney Epic Mickey 2
    • /usr/save/00050000/10149600 Wii KARAOKE U by JOYSOUND
    • /usr/save/00050030/10014200 UNKNOWN
    • /usr/save/system/pdm/80000001 Play data manager
    • /usr/title/00050000/10105a00 Netflix
    • /usr/title/00050000/10113800 Zen Pinball 2
    • /usr/title/00050000/1012be00 PIKMIN 3
    • /usr/title/00050000/10144e00 Wii Sports Club
    • /usr/title/00050000/10149600 Wii KARAOKE U by JOYSOUND
    • /usr/title/00050000/10159a00 Wii Fit U (promo)
    • /usr/title/00050000/10179c00 Dr Kawashima's Brain Training How Old Is Your Brain?
    • /usr/title/0005000e/10102100 Nintendo Land
    • /usr/title/0005000e/1010ed00 MARIO KART 8
    • /usr/title/0005000e/1010ef00 ZombiU
    • /usr/title/0005000e/10111f00 Sonic & All-Stars Racing Transformed
    • /usr/title/0005000e/10113800 Zen Pinball 2
    • /usr/title/0005000e/1012be00 PIKMIN 3
    • /usr/title/0005000e/10144e00 Wii Sports Club
    • /usr/title/0005000e/10159a00 Wii Fit U (promo)
  • Download all sys-titles through JNUStool (encrypotd)
  • Order stuff for a NAND-AID surgery:
    • NAND-AID pcb
    • soldering wire
    • a 9pin Micro SD card socket
    • a strip of 100x 0805 50V 10uF capacitators (only needed one, but could use a few sapres...)
    • Kapton tape (not explicitly needed, but just to be sure everything in insulated)
    • a SanDisk 32GB Micro SD Max Endurance
I still have a few weeks for all parts to be delivered, so I had some time to work out my plan, which I'd like to have validated by some of you:
  • Desolder the extra capacitor on the Wii U board to make room for the NAND-AID, cover the space with solder (question #2: this needs to be connected after desoldering?)
  • Solder the NAND-AID in place:
    • Start with the GND under the future SD socket:
    • Solder D2, D1, etc on the left leg, CK to be soldered on both sides
    • Scratch the CK (question #3: what with? Would a simple hobby knife do?)
    • Solder the SD socket on top (question #4: insultation needed between socket and soldered GND?)
  • Insert SD card (question #5: how do I flash my MLC dump to the SD card, or is that done through the Wii U at a later point? Simply "copy /b" together all parts, then write with Win32Diskimager to SD card?)
  • Boot alternative recovery_menu (with batch WUP installer) through UDPIH and start the WUP-server
  • Run the following (one by one, validating the result) to remove corrupted titles and saves:
Code: 
w.cd("/vol/storage_mlc01")
w.mkdir("corrupted", 0")
w.mv("usr/save/00050000/1011b000/user", "corrupted/01")
w.mv("usr/save/00050000/10149600/user", "corrupted/02")
w.mv("usr/save/00050030/10014200/user", "corrupted/03")
w.mv("usr/save/system/pdm/80000001/user", "corrupted/04")
flush_mlc()

delete_title("/vol/storage_mlc01/usr/title/00050000/10105a00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10113800", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/1012be00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10144e00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10149600", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10159a00", 0)
delete_title("/vol/storage_mlc01/usr/title/00050000/10179c00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10102100", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1010ed00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1010ef00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10111f00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10113800", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/1012be00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10144e00", 0)
delete_title("/vol/storage_mlc01/usr/title/0005000e/10159a00", 0)
flush_mlc()
  • Install all downloaded SYS-titles (9 in total)
  • ...pray to God, restart Wii U and hope everything is working (obviously after running the MLC-checker once more to be sure I didn't miss anything)
I hope that's all, or did I miss anything?
Click to expand...
Maybe I missed this bit cause it’s a long post but how are you planning to repair the No hdmi output? Is this a result of the mlc starting to fail ?
 
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Tbone182b said:
/usr/save/system/pdm/80000001 Play data manager
Click to expand...
This isn't a true error.
Code: 
OpenFile;/vol/storage_mlc01/usr/save/system/pdm/80000001/PlayEvent.dat;-00030015
-30015 just means the file is already open
Post automatically merged:

TheStonedModder said:
Maybe I missed this bit cause it’s a long post but how are you planning to repair the No hdmi output? Is this a result of the mlc starting to fail ?
Click to expand...
There are many things that could cause the wii u to not have a display output. If really just the hdmi is broken, but gamepad etc is working, then it's not a eMMC problem. If the Wii U stays at the blue light and doesn't soft power of with the power button, then it could be a bad eMMC, but it doesn't need to
 
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TheStonedModder said:
Maybe I missed this bit cause it’s a long post but how are you planning to repair the No hdmi output? Is this a result of the mlc starting to fail ?
Click to expand...
Backstory: Wii U hadn't been used for years, decided to dust it off and turn it on to play some easy games with my kids. I had recently read about the 'newer' ways to mod the machine and always had issues with the external hdd I used (it didn't turn on, wasn't recognized, etc), so decided to do a firmware update to the latest and work from there. Firmware update hung (as in: waited for about 12 hours with it being stuck at ~95%), and (knowingly) I decided to power-cycle it nonetheless.
The result was no video output from the Wii U anymore. As the gamepad still connected, I was able to do a factory reset and retry the firmware update, which then made it to 100% and fixed the whole thing.

SDIO said:
This isn't a true error.
Code: 
OpenFile;/vol/storage_mlc01/usr/save/system/pdm/80000001/PlayEvent.dat;-00030015
-30015 just means the file is already open
Click to expand...
Thanks, have taken it out (for now)
 
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TheStonedModder

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SDIO said:
This isn't a true error.
Code: 
OpenFile;/vol/storage_mlc01/usr/save/system/pdm/80000001/PlayEvent.dat;-00030015
-30015 just means the file is already open
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There are many things that could cause the wii u to not have a display output. If really just the hdmi is broken, but gamepad etc is working, then it's not a eMMC problem. If the Wii U stays at the blue light and doesn't soft power of with the power button, then it could be a bad eMMC, but it doesn't need to
Click to expand...
Good to know! I was curious because my system suddenly stopped outputting hdmi picture one day and the eMMC seems fine according to logs

So I was thinking maybe it was just beginning
 
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Some things I would also recommend having on hand for soldering ist some good gel flux and solder wick.
And some fume extractor or at least some fan, to suck the fumes away, so you don't breath them in also a good thing to have. Fumes from the rosin in flux and solder can cause asthma it inhaled to often
 
Tbone182b

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It has been a while, but finally all components came in and got some time to solder everything together.

As far as I can see, everything seemed to be in place. Only thing I couldn't test (to my knowledge) was whether the ground under the SD-cardholder was connected. Assumed it was as the NAND-AID was stuck in position before I started soldering the other points.

Flashed the MLC-backup I created earlier to the SD card, inserted that.
Connected the disc-drive and front panel, didn't bother to assemble all parts.
Booted and... nothing. Powering up through gamepad turns on the console (blue light, disc-drive checks whether there's a disc inserted, etc), but no HDMI output nor can I continue through the gamepad (no connection with console after boot?)

Just to be sure: there's no need to assemble everything before the console boots, right? E.g. a particular screw needed to be in place to connect a ground somewhere and the Wii U checking whether it is?
 
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Did you cut the clk and checked after soldering that it is stil cut?
Also check for shorts between the signals.
Did you connect the 3v3?
How exactly did you flash the Sdcard?
How big is the SD (in bytes)
 
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SDIO said:
Did you cut the clk and checked after soldering that it is stil cut?
Click to expand...
as far as I can see: yes. To be sure, I've soldered both sides of the original CLK to the NAND-AID
SDIO said:
Also check for shorts between the signals.
Click to expand...
Did before, and did it again... didn't notice anything weird

SDIO said:
Did you connect the 3v3?
Click to expand...
Yes, also measured from the other leg to the 3v3 pad on the NAND-AID: seems correct.
SDIO said:
How exactly did you flash the Sdcard?
Click to expand...
Windows:
Bash: 
copy /b mlc.bin.part01+mlc.bin.part02+mlc.bin.part03+mlc.bin.part04+mlc.bin.part05+mlc.bin.part06+mlc.bin.part07+mlc.bin.part08+mlc.bin.part09+mlc.bin.part10+mlc.bin.part11+mlc.bin.part12+mlc.bin.part13+mlc.bin.part14+mlc.bin.part15 mlc-full.bin
Result is a 31.205.621.760 bytes file.
Then flashed the mlc-full.bin using Win32Diskimager straight to the (new, unformatted) SDcard (a SanDisk Max Endurance 32GB)
SDIO said:
How big is the SD (in bytes)
Click to expand...
I had to reformat my SD card to FAT32 to check: 31.898.206.208 bytes, according to Windows.
Will try to reflash using BalenaEtcher now, but doubt that's it...

[edit]
Could it be the CMOS-battery not connected? (tried putting that in place without the casing, but it might just lose contact that way?)
 
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you don't need the cemos battery nor the disc drive and you don't need to assemble the console.
Can you check again with a multimeter if the clk is really cut.
Also measure the signals from the legs of the SD slot to the other (eMMC side) of the resistors. Should be around 30 ohms.

If all's doesn't help, I would suggest installing defuse, to see what's going on.

Other thing you could try would be a different SD card or to try to extract the MLC on the PC with wfs-extract, to make sure the image is good.
 
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I'm currently experiencing something similar to the OP, and although I'm by no means an expert, I thought I should chime in and suggest a few things.

First thing is if the DIS jumper is closed. If it's not then that could cause an issue.

Once that is determined, can you try UDPIH with the SD card inserted?
 

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