Lenovo V570C, V470C manual Troubleshooting Other problems

Page 41

Chapter 5. Troubleshooting

Other problems

Your computer does not respond.

The computer does not start from a device you want.

The connected external device does not work.

•To turn off your computer, press and hold the power button for 4 seconds or more. If the computer still does not respond, remove the AC adapter and the battery.

•Your computer might lock when it enters sleep mode during a communication operation. Disable the sleep timer when you are working on the network.

•See the Boot menu of the BIOS setup utility. Make sure that the Boot Priority Order in the BIOS setup utility is set so that the computer starts from the device you want.

•Also make sure that the device from which the computer starts is enabled. In the Boot menu in the BIOS setup utility, make sure that the device is included in the Boot Priority Order list.

•Press F12 when the Lenovo logo appears on the screen while the computer is starting up to select the device you want the computer starts from.

•Do not connect or disconnect any external device cables other than USB while the computer power is on; otherwise, you might damage your computer.

•When using a high power consumption external devices such as an external USB optical disk drive, use external device power adapter. Otherwise, the device may not be recognized, or system shut down may result.

For more technical support, please visit consumer product website http://consumersupport.lenovo.com.

37

Image 41

Contents Lenovo V470c/V570c Regulatory Notice Contents Page „ V470c Getting to know your computer„ V570c Numeric keypad V570c Built-in microphone Touchpad Getting to know your computerFan louvers „ V470cVGA port RJ-45 portUSB port „ V470c „ V570c Right-side viewMemory card slot GPU Graphics Processing Unit switch Select models onlyDevice switch Select your computer Bottom view SIM card slot Select models only „ Configuring the operating system „ Conncting to the powerLearning the basics „ Reading the manualsShutting down your computer Learning the basics„ Charging the battery „ Checking battery status„ Removing the battery pack „ Handling the batteryRight click button Left click buttonV570c „ Numeric keypadV470c „ Function key combinations Learning the basics „ Connecting a universal serial bus USB device „ Using memory cards not suppliedInserting a memory card Removing a memory cardEnabling Bluetooth communications on your computer „ Connecting a Bluetooth device Select models onlyTo change the GPU, do the following Switching GPU Select models only„ OneKey Rescue system button Special keys and buttonsThese indicators inform you of the computer status „ V570c Page „ Fingerprint reader Select models only „ Using passwords„ Attaching a security lock not supplied „ Software configuration Connecting to the Internet„ Hardware connection CableConnecting to the Internet „ Using Wi-Fi/WiMAX Select models onlyEnabling wireless connection Software configuration„ Using Mobile Broadband Select models only Connecting to the Internet Inserting the SIM card V570c Connecting to the Internet Removing the SIM card „ Introduction OneKey Rescue systemFrequently asked questions TroubleshootingWhen do I need to restore the system to the factory status? TroubleshootingPassword problem Display problemsSound problems Troubleshooting Sleep or hibernation problemsComputer screen problems Hard disk drive problem Troubleshooting Battery problemsStartup problem OneKey Rescue system problemsTroubleshooting Other problems Page Handling a hard disk drive Appendix A. CRU instructionsAppendix A. CRU instructions Appendix A. CRU instructions Appendix A. CRU instructions Sdram Appendix A. CRU instructions Appendix A. CRU instructions Removing the optical drive only for V470c Trademarks If your product is not working correctly Do not Return IT to the StoreNew World. New Thinking.TM