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Guide-WiiU/nand-backup.md

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Making a NAND Backup

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.

  1. Navigate through the Homebrew Launcher and launch the Wii U NAND Dumper app.
  2. 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
  1. Press the A button to start the dumping process.
  2. When the process completed, power off your Wii U, take your SD Card out of the Wii U and plug it into your PC.
  3. 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.
  4. Delete the files from your SD Card to free up space.