Published: October 26, 2023 | Last Updated: 3 hours ago
The upd will first check if your files match Fluxy’s original checksums. If it says "Base file mismatch" , you have a different repack or modified files. You must reinstall the original Fluxy repack before applying the upd.
Check your currently installed repack’s readme.txt inside the game folder. If it says Build 1100 and the upd requires Build 1105 , you need the base version first.
Right-click the UPD file → Run as administrator . Point it to the root folder where the game is installed (e.g., C:\Games\Fluxy\EldenRing ).