I just found out I only have the OTP.bin and SLC.bin, not the MLC. Am I still able to unbrick my Wii U? I bought it off a guy who JUST bought it as flashed, and the FIRST thing he did was he connected Wii U to the internet and updated it... So then it only threw the infamous error code and now it's like that. I am stuck in the menu on the controller, and whatever I click on, it just errors again. So I assume the system has been succesfully updated. Do I also need old mlc or am I good to go with SLC and OTP?
I really think we need more info to know how we can help further.. Connecting the Wiiu to the internet and updating it won't cause issues ... even if you have HAXCHI/CBHC , you'd be fine if all that happened was a system update.
Are you possibly thinking the system was restored back to factory defaults?
When you say you're stuck on the "menu on the controller" , is this the quickstart menu you're referring to (link)? Or are you referring to something else.. Perhaps providing a picture of what you are seeing would help, or maybe a quick youtube video?
Also, please let us know the actual error.. error 160-0101 ? , or is it 160-0103 ? or other ? ... And does this error happen before the Wiiu System menu loads?