Firmware archive for the Tiger T245 Plus Pro receiver, version 2.16 dated 4 July 2016, packed as a 2.66 MB RAR file. The (1) suffix marks it as a duplicate copy of the same release. Tiger receivers are typically updated from a USB stick through the menu, while a dead unit can be recovered by programming the flash chip directly. Check that the model, including the Plus Pro variant, matches exactly, because files for neighbouring Tiger models are not interchangeable, and back up the existing software first.
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 @tvsoftwareworld. 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.