Wii U firmware update 5.3.1 U available now
Nothing to major but some minor fixes to help things out. Check out the full rundown below.
Version 5.3.1 U, available via an Internet connection, includes the following improvements:
Mario Kart 8 highlight reel upload fix:
Resolved an issue that resulted in some users receiving error code 104-1852 while uploading a Mario Kart 8 highlight reel to YouTube
Improvements to system stability and usability:
Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience