Acer Aspire V5-431 Acer V5-471 Notebook Service Guide - Page 199

Performing a BIOS recovery 0 NOTE: NOTE: Make sure the battery pack is installed to the system and that the computer is connected to a UPS unit during the BIOS recovery process. The function hotkey sequence Fn+Esc is used to enable the BIOS recovery process when system is powered On during BIOS POST. If this function is enabled, the system will force the BIOS to execute the boot block program. To perform a BIOS recovery: 1. Shut down the BIOS failed-computer. 2. Connect the USB flash drive containing the Crisis Recovery disk files to the computer. 3. Press and hold the Fn+Esc keys, then press the power button . The BIOS recovery process begins. When the process is complete the computer will automatically reboot. 4. Disconnect the USB flash drive from the computer. 5. Perform a BIOS flash procedure to update the BIOS firmware. Refer to the "BIOS Flash Utilities" section on page 2-13 for detailed instructions. Jumper and Connector Locations 5-9