Lenovo B470E manual Troubleshooting, Display problems, A password problem, Problem, Solution

Models: B470E

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Troubleshooting

Troubleshooting

If you do not find your problem here, see Chapter 2. The following section only describes problems that might negate the need to refer to the more comprehensive information in Chapter 2.

Display problems

Problem

Solution

 

 

When I turn on the computer, nothing appears on the

• If the screen is blank, make sure that:

screen.

– The battery is installed correctly.

 

 

– The ac power 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.)

 

– The memory is installed correctly.

 

• If these items are properly set, and the screen remains

 

blank, have the computer serviced.

 

 

When I turn on the computer, only a white cursor appears

Restore backed-up files to your Windows environment or

on a blank screen.

the entire contents of your hard disk drive to the original

 

factory contents using the OneKey Recovery system.

 

If you still see only the cursor on the screen, have the

 

computer serviced.

 

 

My screen goes blank while the computer is on.

• 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 or hibernation mode:

 

– Touch the touchpad.

 

– Press any key on the keyboard.

 

– Press the power button.

 

• Press Fn+F2 to confirm whether the LCD screen has

 

been turned off.

 

 

A password problem

Problem

Solution

 

 

I forgot my password.

• If you forget your user password, you must take

 

your computer to a Lenovo authorized servicer or

 

a marketing representative to have the password

 

changed.

 

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

 

authorized servicer cannot reset your password or

 

recover data from the hard disk drive. 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.

 

 

24User Guide

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Lenovo B470E manual Troubleshooting, Display problems, A password problem, Problem, Solution