Symbian S60v5 Rom Exclusive ~upd~ Link
: ScienceDirect offers academic overviews of the Symbian platform as an open-source mobile OS written in C++, detailing its use of EKA2 kernels and the S60 user interface.
This was the holy grail of S60v5 modding. It allowed users to apply "patches" on the fly to change system behavior—like disabling the camera shutter sound or enabling a 4-column menu layout. symbian s60v5 rom exclusive