I'm not sure
I followed the 4.2 tutorial to the letter and everything worked.
Got homebrew channel on neogammer USB GX loader etc WAD manager etc...
Loaded backup disks with neogammer and also USB external drive works fine with neogammer.
Everything works apart USB GX loader.
Like I say neogammer works perfectly with my External USB drive so im happy just wanted to find out to learn and also just in case something wrong
Thanks once again
I did what another poster said about deleting the config file for GX loader off my sd card.
Once I did that it worked perfectly.
I think it creates a config file on the SD when u first load GX loader so you can load games from sd card.
When you delete that then use GX loader with External hard drive it creates new one on the External drive.
Thanks for your help glad its working now! :D