Unlike later versions for S60v3 and v5 (which dealt with certificates), works by dynamically modifying the operating system’s ROM image in RAM. It does not flash your phone. Instead, it applies small, reversible "patches" (typically .rmp files) that alter specific bytes in the system code.
Install the ROMPatcher .sis file to your phone's memory or MMC. Nokia-6600-apps-s60v2-rompatcher
Installation & usage (typical steps for S60v2) Unlike later versions for S60v3 and v5 (which