There is no legitimate "activation key patched" or cracked version of DaVinci Resolve. Searching for or using pirated software, key generators, or "patched" activation keys is:
When you see websites promising "patched" activation keys or "cracked" versions of DaVinci Resolve Studio, they are referring to software that has been illegally modified to bypass Blackmagic Design’s licensing server.
Hidden programs that create backdoors into your operating system, allowing unauthorized users to control your computer remotely. Stability and Project Data Loss