Flashing firmware carries a risk of bricking your device. Always back up your data.
RPkg (Resource Package) is a file format used extensively by advanced modding tools and emulators. It is essentially a compressed archive that contains the file system structure of the Symbian ROM. It allows modders to add, remove, or replace system files (libraries, executables, and resources) before flashing the device or loading it into an emulator. symbian rom rpkg extra quality