1) Place the folders '0005000010144F00' and 'wiiu' on the root of your SD card (not inside any folders, straight on to the card).
2) Once both folders are on your SD card, put your SD card in your Wii U.
3) Turn on your Wii U and go to the web browser. Type into the address bar
#LDOVH Loadiine Access Gate (For WiiU 5.3.2 - 5.4.0 - 5.5.0 - 5.5.1) (You can make this a bookmark for quick access, since you need to access this website every time you want to load mods)
4) You will be brought to a website with a dropdown menu. Click this dropdown and select "SDCafiine + Kernel." You can also tick the checkbox for automation. If you load mods often, this is helpful as you won't need to click the dropdown every time.
5) Your Wii U will kick you back to the Home button menu. Load the web browser again and return to
#LDOVH Loadiine Access Gate (For WiiU 5.3.2 - 5.4.0 - 5.5.0 - 5.5.1)
6) The website will load for a second, then go black on your TV. Your gamepad will display some text. If your gamepad has a coffee cup with the letters SD in it, you are on the correct screen. Simply press A.
7) You will be booted back to the Home button menu again. Now you may boot Smash and your mods will be loaded!
8) Enjoy playing with my mod pack!