Lenovo IdeaPad P500 User Guide - Page 25
Troubleshooting, Display problems, Password problems, Sleep problems - battery replacement
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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. Password problems I forgot my password. Sleep problems The critical low-battery error message appears, and the computer immediately turns off. • 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. • 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. • The battery power is getting low. Connect the AC adapter to the computer. 21