PROBLEM FIXED!!!
Hello everyone, here's my story about this error code (160-0103)
First: this is not a supposition, this is the action i took on this problem and helped me 100%
Second: for those who are expecting Nintendo to fix this issue by an update or patch, its in vain, please read this whole thing and I really hope you can get rid of your problem and keep using you Wii as it should be:
I got this error randomly on Nov 30th, the first thing I did I went to all the forums I know to see if the problem could be fix at home after that I called Nintendo with no luck and obviously I could delete the system update from smash saved file in data management, so I ended up with the hope that maybe Nintendo could release a patch and/or update so I waited for 1 week, finally while i was having lunch with my wife (both frustrated for not being able to play smash anymore) and thinking how to fix the problem, I just decided to call Nintendo and have a second conversation with a tech, this guy was nice (and here;s the key, you need to be patience, I called once as mentioned before and the guy just told me that I have to pay 100 dollars for the repair since my console was out of warranty, and I declined, if you don't like your first option just hang up and call again, try to find someone that is really willing to help, that's the way I do this kind of thinkg with any company (Walmart, Gamestop, amazon, etc),
so this second time i tried to be specific and have them realized that is not only me, i just explained him about the error code and the fact that my wii u was only affected by that update, so he explained me that for the troubleshooting performed THIS IS A HARDWARE ISSUE and they need to check the console to either replace the part or in the worst case scenario to send me back a replacement. at this point my only worry was my saved data, i ask him to take good care of that since there's too many hours spent on my games and i took care about my progress, OBVIOUSLY HE ONLY TOLD ME THAT THEY HAVE TO TAKE A LOOK BUT HE COULDN'T ASSURE ME THAT MY DATA COULD BE SAVE AT THIS POINT,
now let me tell you, that day I ended up sad after drop off my console at a UPS office, 'cause I knew I had to play and get all my progress in Mario World, Hyrule Warriors, all the 150 trophies I already had in Smash all the events once again, but i accepted the fact that is a hardware issue pretty much caused by turning off your Wii console without closing the software, and lets be specific: if the Wii U has an option called "CLOSE SOFTWARE" It's because you have to be gentle with the data and have the console shutdown all before turn it off, make sense? right?
OK so lets ended up this by saying that they opened me a Service Order #, they sent me a prepaid shipping label to send it via UPS 2 day super fast shipping, I waited exactly 7 days to received my Wii U back, and HERE'S THE GOOD THING: they ended up sending a new replacement and they did the job of transfer everything to the new console as i told this guy on the phone including Smash Bros, the only thing i had to do is to re download the digital games I had like Wind Waker and Wii U Party attached to mi Nintendo ID (already setup on the new Wii), all the DLCs were successfully transferred, and since this is a new console IS WORKING JUST PERFECT!!! no problems at all. and everything at NO COST (0)!! COVERED 100% BY NINTENDO INCLUDING SHIPPING
I tried to cover all i did and hope help everyone to take action and have their Wii Repaired/Replaced, but if you have a question let me know.
Nintendo has the way to save everything when they know the problem comes from their end, I know every case is different but if you are referring here about Smash update and data corruption, they will take good care of your saved data, remember better be safe that sorry, before send the console to Nintendo connect a USB to your Nintendo and make a backup, just to be safe.
any questions let me know.
Regards
The Contest Kid
IT Professional