BIOS image for the Acer Predator Helios 300 series model PH315-51, with firmware identifier DH53F_1A given in the name, packed as a 5.21 MB RAR archive. Technicians use such dumps to recover a laptop that powers on without display, loops at boot, or has a corrupted BIOS after a failed update. The image is normally written to the SPI flash chip with a programmer such as a CH341A and a clip. Confirm that the motherboard matches this model, check the chip capacity against the file size and back up the original contents 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 @biosarchive. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 5 Jan 2020 | Open file on RM Schematics |
| @biosarchive | 8 Jan 2020 | Open file on RM Schematics |
| @laptexlaptopbios | 9 Jul 2020 | Open file on RM Schematics |
| @one5technology | 21 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
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 →