| | Value | |--------------------------|------------------------------------------| | Model | Nokia X6-00 | | Type Code | RM-559 | | Platform | Symbian^1 (S60 5th Edition) | | Firmware Format | .fpsx (Nokia Care Suite) / .exe (NSU) | | Latest Known Version | v40.0.002 (varies by product code) | | Bootloader | Locked (signed only) |

A complete firmware set for the RM-559 usually consists of several files required by flashing tools: MCU (.mcusw): The core operating system files. PPM (.ppm): Contains language packs and localized dictionary files. CNT (.image):

The firmware updates for the Nokia X6-00 were not just bug fixes; they often introduced functional changes that extended the life of the device.