Acer Aspire S5-391 Service Manual page 50

Flash process begins. The BIOS flash window is shown as below.
The system restarts automatically when finished.
IMPORTANT:
Ensure the AC power adaptor is connected to the power source.
•
If the Warning message below is shown, check if the AC power adaptor is properly
•
connected or not.
Do not disconnect the AC power adapter.
•
2-14
Figure 2-14. Updating Flash BIOS
Figure 2-15. Warning Message
System Utilities