Use a tool like Universal BIOS Backup Toolkit or AFUWIN (AMI Firmware Update Utility). Save the .rom file to an external drive.

Avoid “all-in-one” flash tools from unknown sources. Stick to SP Flash Tool + trusted firmware from XDA or dedicated MTK ROM sites. Always backup NVRAM first.

A Flash File is the operating system software that comes pre-installed on your device. It is the collection of files required to run the hardware. Unlike a custom ROM (which is developed by third-party enthusiasts), a Stock ROM is the official software released by the manufacturer (in this case, Acer).

In the context of the Acer One 8 (which includes models like the Acer One 8 (Z8) or the Acer Spin 1 series), a "flash file" typically refers to the . Unlike Android smartphones, Windows laptops do not use "scatter files" or "ROMs" in the same way. Instead, the flash file is a binary file (often .fd , .bin , .rom , or .cap ) that contains the low-level software responsible for initializing hardware components before the operating system loads.

The "Acer One 8" naming can be confusing. Models include: