Realtek RTS5450 Type-C controller firmware for M15T and M17T main boards, revision 21. No brand is specified in the name, so match the board label and revision on the PCB before using it. The RTS5450 negotiates USB-C power delivery, and a damaged flash image typically leaves the port dead for charging. Programming the controller's SPI chip with a CH341A or similar programmer is the usual fix. Read and keep the original contents first, then verify after writing.
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 @biosdumpcomputer. 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →