A: No. Prebuilt OEM boards use locked BIOS with custom ACPI tables. Flashing a generic Esonic BIOS will brick it completely.

A: The BIOS file is for a different board. Force-flashing (/X switch in AFUDOS) is extremely risky – do not attempt unless you have a hardware flasher ready.


A failed BIOS update can brick your motherboard (make it completely unusable). Follow these rules:


Most H61 boards (including many Esonic models) support BIOS Flash via USB + DOS, but the most useful safety feature is:

Search for your exact model number + "BIOS" on:

Example filenames you might find:

Esonic H61 boards have multiple variants. Look for the model number printed directly on the motherboard (not just the box).

Some users flash a generic AMI UEFI BIOS for H61, but this requires a SPI programmer (hardware flasher) and is risky.

Warning: Updating BIOS can brick a motherboard if interrupted. Back up data, use a stable power source (UPS recommended), and follow steps exactly. Assume you have Windows 10/11 or a USB drive available.