Writing to the DMI block carries a risk of corrupting the BIOS. Always back up your current BIOS chip using a programmer or software dump before proceeding.
Modifying DMI data outside of an authorized center may void your remaining warranty. acer dmi tool link
Copy the DMI executable (usually DMI.exe , AMIDE.exe , or H2OCPU.exe ) to the root of the USB. Writing to the DMI block carries a risk
Disable "Secure Boot" in your BIOS settings and boot from the USB. acer dmi tool link
Use Rufus to create a FreeDOS bootable USB.