Troubleshooting - Asus AST21 Basic Manual

Troubleshooting

Before you assume that the product is malfunctioning,
check the following:
Symptom
Cannot turn on
power.
Cannot charge
the battery.
Battery usage
time is short.
Cannot operate
touch panel as
intended.
Cannot operate
the keys/touch
panel.
Where to check
• Is the battery charged?
• Did you hold down
least 2 seconds?
• Is the specified charging
equipment attached properly?
• Is the battery fully charged?
• Is the internal battery at the end
of its life?
• Is the product often used at
places where [
area) appears?
• Are apps and functions not in use
running?
• Are you operating with gloved
hands?
• Are you operating with a fingernail
or foreign object on the screen?
• Are stickers or sheets (e.g.
commercially available protective
films, peep prevention sheets)
affixed on the display?
• Is the screen lock set?
• Restart the product.
for at
] (out of service
Ref.
page
P.59
P.62
P.59
P.59
P.36
P.65
P.63
P.62
Appendix 89