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Making a NAND Backup {docsify-ignore}
In case anything should go wrong in the later process and your Wii U ends up bricked, restoring a previously made NAND backup can fix it.
Instructions
?> The Wii U NAND is (depending on your model) either 8 or 32GB. As a result of this, to create a full backup of your console's NAND, your SD Card has to be larger than the size of your NAND. If you do not have a large enough SD Card, you can skip the optional MLC
section which includes save files and game data and is not needed to recover most types of bricks.
?> Restoring a NAND Backup on the Wii U requires additional hardware and micro soldering skills.
However, making a NAND Backup is always useful, so please do not skip it.
Your NAND Backup is unique to your system. Backups from other consoles won't work.
- Navigate through the Homebrew Launcher and launch the
Wii U NAND Dumper
app. - Use the Wii U Gamepad's DPAD to enter the following configuration:
- Dump SLC: yes
- Dump SLCCMPT: yes
- Dump MLC: optional
- Dump OTP: yes
- Dump SEEPROM: yes
- Press the A button to start the dumping process.
- When the process completed, power off your Wii U, take your SD Card out of the Wii U and plug it into your PC.
- To make sure you don't lose the files, copy the
slc.bin
,slccmpt.bin
,seeprom.bin
,otp.bin
and if you chose to go with a full backup,every mlc.bin.part
file to your computer. - Delete the files from your SD Card to free up space.