Hacking CBHC Trouble plz help

pedro702 · Mar 21, 2017

GBA rocks said:
Maybe I'm slow: what would 99% of the people (not haxxors and soldering magicians) do with a NAND backup and a bricked Wii U today?
Is this yet another instance of driving people towards mocha/rednand with no real reason?

Just buy a used central unit and pair your existing gamepad with the new unit. Solved, 70$.

with an hardmod you can restore the nand to a previous date and unbrick basicaly, but it needs to have that console exact nand.

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Felek666 said:
Man i would sell my house for that SDCard...

good luck with that lol, selling a house to unbrick a wiiu lol

this stuff never gets leaked becuase its not just a program but hardware stuff too, is like most games you never ever get a leaked source code, only when the devs want to is that they release it.

EyeKey · Mar 21, 2017

It is theroticlly possible to fix it only with OTP and hard-mod. Since you only need to modify one file in the SLC filesystem. But the tools to do so don't exists yet, but I am working on something that may be available soon. You can follow the hard-mod thread.

EDIT: just to add on that. It is IMPOSSIBLE to fix bricked Wii U without the OTP or REAL NAND dump (one of them is required), the software dumped NAND isn't enough! Because that dump isn't complete and is impossible to fix it without the OTP. I am trying to modify an existing tool to do a full and proper NAND dump, will update if it works.

So OTP > NAND "dump"

pwsincd · Mar 21, 2017

WiiKiing said:
This thread seems to have taken a slight deviation. We are not here to debate whether or not people should use cold boot nor how mistakes are made and the inelegance of ppl that make them. Please can we keep this topic solution based.

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I can't seem to work out how to post there

you dont .. i did already when i linked it for you.

Deleted User · Mar 21, 2017

pedro702 said:
good luck with that lol, selling a house to unbrick a wiiu lol

That's the joke

digipimp75 · Mar 21, 2017

Kafluke said:
If you "point" it to the nand backup then you'll be using rednand. Backup your nand to PC using tools here and then once you have a solid backup on your pc start using HaxChi.

Thanks, I did it today. The rednand dumps were saved on my pc using the SDIO tool. After that, I reformatted the sd card and restored my previous files folders that were backed up. So that's it? I can just continue on using Haxchi and don't have to do anything else?

EyeKey · Mar 21, 2017

digipimp75 said:
Thanks, I did it today. The rednand dumps were saved on my pc using the SDIO tool. After that, I reformatted the sd card and restored my previous files folders that were backed up. So that's it? I can just continue on using Haxchi and don't have to do anything else?

As it was mentioned before, those backups (the 512mb dumps) are incomplete and worthless when it comes to recovering from bricks (or anything else, they are just not flashable). Backup your OTP, that is more important.

digipimp75 · Mar 21, 2017

EyeKey said:
As it was mentioned before, those backups (the 512mb dumps) are incomplete and worthless when it comes to recovering from bricks (or anything else, they are just not flashable). Backup your OTP, that is more important.

Yep, I have that backed up too.

tswntk · Mar 21, 2017

Reecey said:
That's exactly what I meant by your "driving license", he should take the main files down and use it so you need to download the master folder from github and compile the cbhc.elf file at the end yourself, then I would of thought if you can do that part you can definitely install the damn thing correctly...

I am sure by then noobs will start begging for the elf and some one will "generously share" the elf w/o much info - leading to even more bricks.

GBA rocks · Mar 21, 2017

EyeKey said:
It is theroticlly possible to fix it only with OTP and hard-mod. Since you only need to modify one file in the SLC filesystem. But the tools to do so don't exists yet, but I am working on something that may be available soon. You can follow the hard-mod thread.

EDIT: just to add on that. It is IMPOSSIBLE to fix bricked Wii U without the OTP or REAL NAND dump (one of them is required), the software dumped NAND isn't enough! Because that dump isn't complete and is impossible to fix it without the OTP. I am trying to modify an existing tool to do a full and proper NAND dump, will update if it works.

So OTP > NAND "dump"

So to recap
- rednand incomplete NAND backup (no ECC data) = completely useless by itself (but maybe one day there could be a software to add ECC data to it?)
- real NAND backup via hardmod = sufficient by itself to unbrick if and when the right software tools are available (plus hardmod to flash)
- OTP backup (how? hardmod or homebrew?) = sufficient by itself to unbrick if and when the right software tools are available (plus hardmod to flash)

so either one of real NAND backup or OTP backup is sufficient?

Anyway I can hear the sound of hundreds of gbatempers with an incomplete NAND backup obtained via rednand and their false sense of safety. Cue Lisa Simpson and the tiger-repelling rock.

And to wrap up: as I suspected, to this day, to this week, to this month of March 2017, there are zero confirmed wiiU unbricks of any kind and having a (botched or real) NAND backup wouldn't give the OP's kids a WiiU back by next weekend.

Tomorrow, maybe. Maybe someone will even start selling hardmod kits.

And as always, to noobs like myself:
- don't use rednand, it's just superstition and problems (f*** the wiiuguide)
- don't backup your nand, it's just superstition at the moment and the rednand-made backup is completely useless
- don't use mocha via browser exploit you cheapstake, setup haxchi or CBHC while we still can access the eShop

don't use rednand
don't use rednand
don't use rednand

EyeKey · Mar 21, 2017

GBA rocks said:
So to recap
- rednand incomplete NAND backup (no ECC data) = completely useless by itself (but maybe one day there could be a software to add ECC data to it?)
- real NAND backup via hardmod = sufficient by itself to unbrick if and when the right software tools are available (plus hardmod to flash)
- OTP backup (how? hardmod or homebrew?) = sufficient by itself to unbrick if and when the right software tools are available (plus hardmod to flash)

Almost. First of all, just to clarify, I am talking about the SLC and not the MLC. The MLC dump can be useful, but most of the bricks require fixing the SLC...
-rednand incomplete NAND backup - the ecc can be added. But HMAC hashes are missing too, and can't be added without properly parsing the filesystem (aka requires the OTP, and if you have the OTP and we had the right tools it is pointless to fix the dump, and not just fix the filesystem..)
- real NAND backup via hardmod - don't need any special tool, can be just flashed again to recover the brick (I don't think that any brick had a real NAND dump before the brick...)
So yes, the redNAND SLC dump is pretty useless for recovering from bricks. Most of the bricks can probably be fixed just by editing the xml to launch system menu again.. (The dump may be useful if you -really- fucked the SLC and have the OTP and the proper tools..)

It should be possible to do a proper dump from the software side, without hardmod. Actually I am trying something right now...

GBA rocks · Mar 22, 2017

So there are zero confirmed unbricks to this day only because nobody with a hardmod-obtained complete NAND backup ever bricked (or risked a spare WiiU for science)?

I'm starting to follow you about the OTP: the day we'll be able to leverage its decrypting capabilities, we might as well just fix the real NAND and not the backup saved on PC. So once again, the incomplete NAND backup would be useless. And it's now clearer why having OTP + being able to harness it could be sufficient to fix some situations.

Anyway it sounds like the most viable method at the moment is dumping the complete NAND as a whole via hardmod and reflashing it in case of need. We just need
- to actually prove it's possible to unbrick this way (a barebone used wiiU main unit to sacrifice isn't that pricey on ebay after all..)
- possibly develop a software method for a complete NAND dump without hardmod (like you seem to be working on), though one would need the hardmod to reflash it anyway
- for someone to develop and sell a hardmod kit to allow semi-noobs to do a tidy job; I imagine it like wires --> flat cable exiting the WiiU --> SD --> stuck inside a compatible SD reader --> all inside a little box with a microUSB port to be connected to the PC

Again as of today unbricking is out of the reach for 95% users. If one has to pay a local shop to hardmod he might as well buy a spare barebone (gamepad-less) wiiU (8gb or 32gb makes zero difference), cheap as they are nowadays. Luckily bricking never bricks the priciest part: the gamepad.

EyeKey · Mar 22, 2017

As for my last update in the second thread, right now it seems that we have all the needed knowledge to fix those bricks with hardmod and OTP. So I expect to see an unbricked WiiU soon...

Anyway, now it seems to be simple to create a tool to fix a bricked full nand dump, so I will such create a tool really soon.

fille · Mar 26, 2017

yesterday dumped both and today opened with your program,i also have the otp,and it opened fine.

Hacking CBHC Trouble plz help

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