RAR archive that, by its name, contains the FlexBV boardview and schematic viewer along with an unofficial crack. FlexBV opens BVR, BRD and many other boardview formats, and can link nets to PDF schematics. Cracked software may carry malware, so scan it carefully or use the licensed release from the developer. It is a tool rather than device data, so no model or board applies. A licensed copy also receives format updates and fixes that matter when opening newer boardview files.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @GENERAL_SMART_PHONE_SCHEMATICS. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.