Acer AN515-51 Service Manual page 62

NOTE:
Before flashing BIOS, make sure that the AC and DC power source is plugged in. If the warning
message below appears, check if the AC is properly plugged in and the battery remaining
capacity is more than 25%.
2-24
Figure 2-22. AC Detect Error
Figure 2-23. DC Detect Error
Figure 2-24. Battery Too Low Error
System Utilities