Lenovo Z370 Troubleshooting Password problems, Keyboard problems, Sleep or hibernation problems

Page 45

Chapter 5. Troubleshooting

Password problems

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 HDD 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.

Keyboard problems

A number appears when you	• The numeric lock function is on. To disable it, press Fn + F8.
enter a letter (Z370/Z470).

Sleep or hibernation problems

The critical low-battery error message appears, and the computer immediately turns off.

The computer enters sleep mode immediately after Power- on self-test (POST).

•The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one.

•Make sure that:

-The battery is charged.

-The operating temperature is within the acceptable range. See “Chapter 2. Use and care Information” of Lenovo Safety and General Information Guide.

Note:If the battery is charged and the temperature is within range, have the computer serviced.

41

Image 45

Contents IdeaPad Z370/Z470/ Z570 Regulatory Notice First Edition December Copyright Lenovo Contents Page Getting to know your computer Z370/Z470Top view Getting to know your computer „ Z570Speakers Power button OneKey Rescue system button Camera Wireless module antennas Computer displayGetting to know your computer Integrated Thermal management buttonLeft-side view „ Z370/Z470Combo port USB port ESATA/USB Getting to know your computer„ Z370 „ Z470 „ Z570 Right-side viewOptical drive Getting to know your computer USB port Front view Bottom view „ Z370C d Battery pack „ Configuring the operating system „ Connecting to the powerLearning the basics „ Reading the manuals„ Shutting down your computer Putting your computer into sleep stateLearning the basics „ Charging the battery „ Checking battery status„ Handling the battery „ Removing the battery packUsing the touchpad Using the keyboard „ Numeric keypad Z370/Z470Z570 „ Function key combinations Learning the basics „ Using memory cards not supplied Inserting a memory cardRemoving a memory card „ Connecting USB devices Enabling Bluetooth communications on your computer „ Connecting Bluetooth enabled devices on select models„ Volume buttons b~d „ OneKey Rescue system button aSpecial keys and buttons „ OneKey Theater button e Super silent mode Standard modeEfficient thermal dissipation mode „ Thermal management button fPerforming dust cleaning System status indicators Page „ Using VeriFace „ Attaching a security lock not suppliedSecuring your computer Enabling Nvidia Optimus on select models „ Using passwordsWired connection Connecting to the Internet„ Software configuration Connecting to the Internet„ Hardware connection Wi-Fi WiMAX Wireless connectionHardware connection Software configurationOneKey Rescue system „ IntroductionOneKey Rescue system OneKey Rescue system „ Creating a recovery discsOneKey Rescue system Frequently asked questions TroubleshootingWhere can I find warranty information? Display problems TroubleshootingTroubleshooting Password problems Keyboard problemsSleep or hibernation problems Puter does not work Computer screen problemsBattery problems Troubleshooting Sound problemsHard disk drive problem Startup problemRespond Troubleshooting Other problemsAppendix A. CRU instructions Replacing the battery packAppendix A. CRU instructions Handling a hard disk drive Replacing the hard disk driveZ370 Appendix A. CRU instructions Appendix A. CRU instructions Z470/Z570 Z570 Pull the tab in the direction shown by arrow d Take out the hard disk drive secured in a metal frame e Appendix A. CRU instructions Replacing memory Appendix A. CRU instructions Appendix A. CRU instructions Removing the optical drive Setup Poster User Guide Trademarks Page New World. New Thinking.TM