Firmware image for the Acer Aspire 5315, with z and an unexplained number 123455 in the name. The number is not explained and may simply be a label, not a version. The 1.00 MB size matches an 8 Mbit SPI chip. It can serve as a replacement dump when the original firmware is corrupted. Check that your chip has the same capacity, back up the original, and confirm the board matches before programming.
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 @abgm_manutencao_bios. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →