Lenovo 59RF0176 manual Display problems, Password problems, Sleep problems

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Chapter 4. Troubleshooting

Troubleshooting --------------------------------------------------------------------------

Display problems

When I turn on the computer,

•

nothing appears on the

 

screen.

 

 

•

When I turn on the computer,

•

only a white cursor appears

 

on a blank screen.

 

My screen goes blank while

•

the computer is on.

 

If the screen is blank, make sure that:

-The AC adapter is connected to the computer and the power cord is plugged into a working electrical outlet.

-The computer power is on. (Press the power button again for confirmation.)

If these items are properly set, and the screen remains blank, have the computer serviced.

Restore the system partition to its original status or a previously created back-up point using the OneKey Recovery system. If you still see only the cursor on the screen, have the computer serviced.

Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep mode:

-Press any key on the keyboard.

-Press the power button.

-Press F9 to confirm whether the backlight for the LCD screen has been turned off.

Password problems

I forgot my password.

• If you forget your user password, ask the system

 

administrator to clear your user password.

 

• If you forget your hard disk drive password, a Lenovo

 

authorized servicer cannot reset your password or recover

 

data from the hard disk. You must take your computer to a

 

Lenovo authorized servicer or a marketing representative to

 

have the hard disk drive replaced. Proof of purchase is

 

required, and a fee will be charged for parts and service.

 

• If you forget your supervisor password, a Lenovo

 

authorized servicer cannot reset your password. You must

 

take your computer to a Lenovo authorized servicer or a

 

marketing representative to have the system board

 

replaced. Proof of purchase is required, and a fee will be

 

charged for parts and service.

 

 

Sleep problems

 

The critical low-battery error

• The battery power is getting low. Connect the AC adapter to

message appears, and the

the computer.

computer immediately turns

 

off.

 

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Contents Lenovo Z/P Series Regulatory Notice Contents Page Getting to know your computer Getting to know your computer „ Z500/P500Built-in microphone Wireless LANPower button Antennas Computer display„ Hotkeys Z400 Z500/P500Fn + PgDn „ Function key combinationsFn + PgUp Fn + HomeVGA port Novo buttonFan louvers RJ-45 port„ Connecting to wired LAN Software configurationHardware connection Cable Inserting a memory card „ Connecting USB devices„ Using memory cards not supplied Removing a memory card„ Attaching a security lock not supplied Optical driveKensington slot Symbol Indicator Status Charge Status Meaning System status indicatorsSpeakers Starting to use Windows Start screen DesktopStarting to use Windows Search charmStart charm Settings charmStarting to use Windows Share charm Devices charmPutting the computer to sleep or shutting it down „ Putting your computer to sleep„ Shutting down the computer „ Multi-touch gestures TapPress and hold Pinch RotateSlide Swipe Frequently used gestures Tasks performed Enabling wireless connection Connecting to a wireless LANHelp and support Lenovo OneKey Recovery system „ Backing up the system partition„ Restoring „ Lenovo OneKey Recovery system Troubleshooting„ Drivers and preinstalled software „ Finding information„ Bios setup utility Troubleshooting„ Getting help Display problems Password problemsSleep problems Computer screen problems Sound problemsBattery problems Backup problem Hard disk drive problemStartup problem Other problemsTrademarks Page V1.1en-US
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