Acer AR180 F1 Series User Manual page 77

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Warning! Do not upgrade the BIOS unless your system has a BIOS-
related issue. Flashing the wrong BIOS can cause irreparable
damage to the system. In no event shall Acer be liable for direct,
indirect, special, incidental, or consequential damages arising
from a BIOS update. If you have to update the BIOS, do not shut
down or reset the system while the BIOS is updating. This is to
avoid possible boot failure.