I've been trying to fake update my wii u for the past day. I just bought it a few days ago when I heard the news that I can play mario maker on an exploitable firmware. I've tried on two SD cards, resetting the browser cache, no SD card, and a bunch of other things. I can't seem to get past the point where the browser closes itself. It worked once but when I ran it a second time the update didn't take. Now when I load up the exploit the browser will crash and the system becomes unresponsive. My Wii U is 5.3.2, the browser is 4.1.1.9601 and the SD I am using works with my wii, though I did reformat it for this hack and to hack my vWii. Its never been updated or had anything installed to it. I don't even have a Nintendo ID associated with it currently.
Occasionally I'll get a black screen with a few artifacts or an actual Hack failed message but mostly it will just crash. Are there any tricks which I can try to help the exploit take or am I just unlucky?