hello guys wondering if i can still update my wii u if their is a new system update in the future guessing that their will be when smash bros comes out with its new game cube adapter and amiibos would i still be able to update ?
Nobody knows the future.
If the WiiU update doesn't modify the vWii anti-piracy protection, then you are fine.
vWii has been updated since the WiiU launch, but never to counter softmod. We don't know if Nintendo will continue like that or will decide to block it.
There's a lot of chance that they will not update the detection.
As long as you don't mess your vWii system files up, you can update WiiU without problem.
Just never touch or use homebrew modifying IOS files below slot 200.
There's no way to restore NAND on vWii.
NAND backup is done only in hope there will be a way in the future, or if you need to restore it with hardware flasher to solder in your console. It's also done in case you need to extract a single file from it (IOS, or config etc.) and write it back to NAND (but not a full restore, you need a working vWii to restore files one by one).
You didn't replace IOS to get USBLoaders working, you added new ones.
Original IOS are located in slots located from 1 to 80
For USBLoaders, you installed patched IOS in slot number 249, 250, and maybe 251 depending on the tutorial you followed.
That's a good question.If I patch IOS 80, can I install it back from a NAND backup so the WiiU can be updated?