I managed to install NSPs, but not MK8 for some reason.There is no "guide" as there are multiple title installers and even more programs for installing .NSP files via USB. I personally use Aluminum Foil with Tinfoil. As for deleting the update, simply enter Maintenance Mode. Nintendo even has a guide for entering it but just do not do step 3. Simply entering this mode will remove the downloaded system update but be sure to remove Wi-Fi settings before entering Maintenance Mode otherwise the update will be downloaded again.
Managed to enter maintenance mode, but it did not solve the problem, my emunand is with the system update downloaded and ask to update everytime i try to run a game.
Last edited by jucaa,