Archive for the Lenovo V155-15API laptop, 4.30 MB as RAR, with no board number or content type given. Open it to identify what it holds, whether a schematic, boardview or firmware dump, and which motherboard it targets. Such material supports tracing power rails, checking a short on the main supply and locating components. If firmware is included, back up the original SPI flash before writing and confirm the image fits the chip; also match the PCB number 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 @ShareMan_Electronic_Files. 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.