So I ran decaffeinator and put on aggressive mode, and just tried to boot into the vwii, it just gave me a blank screen and returned me to wii u home menu. Later i tried to run vwii nand restorer, only thing that i could do is to run Clear SLCCMPT, i couldnt run extract nand or copy extraced NAND to SLCCMPT. Fixing modes did absolutelly nothing. I later found out decaffeinator needs an update in order to restore the vwii back to normal. the problem is that i run tiramisu and after the decaffeinator tells me to go do an update, its impossible due to tiramisu blocking updates. And there is no way i can run an update either due to my system being on 5.5.5. So is there any way i could revert my system to 5.5.4 or any other version so i could perform a system update and restore vwii or is my vwii completely gone?