Fill in the Blanks Troubleshooting GuidelinesOnline version Troubleshooting Guidelines by Mr. Balcarcel 1 charged battery source The is sufficiently charged . If the battery reads fully in Windows , disconnect the laptop from its power . 2 Function key monitor You can press ( Fn ) and the appropriate display to switch the display output to the laptop . 3 cheaper laptop display Be aware that it is often to purchase a new computer than to replace the . 4 Flickering faulty Screen ? can be caused by a backlight or inverter . 5 ke decrypt email If you are unable to an , you probably don't have the correct private 6 devic Bluetooth pairing Update drivers if you have trouble a GPS - dependent Bluetooth 7 pads drift Digitizer can have an issue called pointer 8 laptops switch wireless Many include a that turns the network card on and of f 9 card drivers Make sure the sound works properly and is running with updated .