Ok first what you say about MKW make absolutely no sens!Why?Becouse this game does not have a FW update on it.The only what could be installed will be the MKW channel and if some other allready installed channel use this ID it will be overwriten not to brick your Wii.
As i sayed the update layer will be full with xxxxxx.wad.out.wad files and this are no update files.
Hier a pic of it with Wii Scrubber:
Please do not misunderstand me.I want to help you but i have moddet a lot of Wiiīs and never run into a brick or that a Wii have ben self updating.I for my self have updated to FW 3.4 with CFW Wii and again downgraded and installed all successfull.
I now that 100% the Wii will not be self updating to this time and MKW does not contain a FW update.And no channel included into my pack will have the MKW-Channel ID.So no way that it could be the CFW or my Pack.
Back to help you:
For savemiifree you have to modd the digi pad of the gc controller there for you must press all 4 ways to same time and normally this dono work.So you must open it, cut of the nipple and put all together.Than controller must connect to port 4 (last one) and at the boot up you should press all 4 ways of the digi pad to start rescue menu.
If you are on FW 3.2, rescue menu is working and you press at correct timing you will se a "FW3.2" in the right corner.Nothing more.Than you must put in a Original disc or with a Modchip, set to autoboot discīs, you also could use a copy.Sure becouse the drive only sendīs the data to console and there for the chip patch the data to be OK a copy will also work
Under FW 3.2 you will not see any character.
I will post it tonight with (hopefully) a vid of it in action.
List me what apps you use and what you have installed and i can say more.