Combined BIOS and EC firmware set for the Acer Aspire 4820TG with a Quanta ZR7B mainboard. The embedded controller handles power sequencing, the keyboard, battery charging and fan control, so a damaged EC image can leave a board dead even when the BIOS is fine. Supplied as a 1.53 MB 7z archive, the files are written with an SPI programmer to the matching chips. Confirm the Quanta ZR7B marking on the PCB, identify which chip holds which code, and back up both chips before flashing.
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 @bios_laptop. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →