Did u try googling UNEO channel booter?
https://sourceforge.net/projects/usbloadergx/files/Releases/Forwarders%20dols/UNEO%20Channel%20Booter%20for%20Priiloader.zip/download
I'm new here so I apologize if this has been asked before.
I'm having some troubles with getting my Wii to autoboot to USB LoaderGX. I have the UNEO Forwarder WAD installed, and Priiloader reads it fine, but when it's booted via the Autoboot...