Fingerprint reader problems
•Problem: The surface of the reader is dirty, stained, or wet.
Solution: Gently clean the surface of the reader with a dry, soft,
•Problem: The reader often fails to enroll or authenticate your fingerprint.
Solution: If the surface of the reader is dirty, stained, or wet, gently clean the surface of the reader with a dry, soft,
For tips on how to maintain the fingerprint reader, refer to “Maintaining the fingerprint reader” on page 53.
Battery and power problems
This topic contains instructions on troubleshooting battery and power problems.
Battery problems
•Problem: The battery pack cannot be fully charged in the standard charge time when the computer is powered off.
Solution: The battery pack might be
1.Turn off the computer.
2.Ensure that the
3.Connect the ac power adapter to the computer and let it charge.
If a quick charger is available, use it to charge the
If the battery pack cannot be fully charged in 24 hours, use a new battery pack.
•Problem: Your computer shuts down before the battery status indicator shows empty, or your computer operates after the battery status indicator shows empty.
Solution: Discharge and recharge the battery pack.
•Problem: The operating time for a fully charged battery pack is short.
Solution: Discharge and recharge the battery pack. If your battery operating time is still short, use a new battery pack.
•Problem: The computer does not operate with a fully charged battery pack.
Solution: The surge protector in the battery pack might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again.
•Problem: The battery pack cannot be charged.
Solution: You cannot charge the battery when it is too hot. If the battery feels hot, remove it from the computer and allow it to cool to room temperature. After it cools, reinstall it and recharge the battery. If it still cannot be charged, have it serviced.
An ac power adapter problem
Problem: The ac power adapter is connected to the computer and the working electrical outlet, but the power adapter (power plug) icon is not displayed on the taskbar. Also the ac power indicator does not light up.
Solution: Do the following:
1.Ensure that the connection of the ac power adapter is correct. For instructions on connecting the ac power adapter, see Safety, Warranty, and Setup Guide that comes with your computer.
