Your SD Card will need to be formatted as FAT32. If your SD Card is not formatted to FAT32, use [GUIFormat](http://ridgecrop.co.uk/index.htm?guiformat.htm) with 32k (32768) Allocation unit size to format it. **Do not** label the SD Card as `wiiu` or it will cause issues with homebrew.
?> If you have hacked your Wii U in the past, you can use the same SD Card for this process.
### What You Need {docsify-ignore}
- The latest files from [Tiramisu for your café](https://tiramisu.foryour.cafe).
- The <ahref="docs/files/Patched_IOS80_Installer_for_vWii.zip"download>Patched IOS 80 Installer for vWii</a>. ([Source](https://github.com/Lazr1026/Patched-IOS80-Installer-for-vWii))
1. To make sure you don't lose the files, copy the `slccmpt.bin` and `otp.bin` files, and if you chose to go with a full backup, `seeprom.bin`, `slc.bin`, and `every mlc.bin.part` file to your computer.
!> If for any reason, the Wii U is turned off while patching IOS 80, your vWii will be bricked. This can be fixed by either extracting the IOS 80 from your previously made NAND backup and then replacing it over FTP or by [reinstalling IOS 80](recover-vwii-ioses-channels).
1. Launch Patched IOS 80 Installer for vWii.
1. Read the warning screen and wait 30 seconds.
1. Press any buttons to install.
1. Wait until it says <code>IOS80 <wbr>Installation <wbr>is <wbr>complete!</code>.
!> Installing custom System Menu is a definite brick risk and you should always have an effective backup before installing one but when done right, won't brick the vWii.
!> Installing any IOS (including TED IOSes) or wads made for the original Wii on your vWii will brick it.