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A wireless LAN problem, Bluetooth problems, Problem, Solution, Message, Start, Control Panel

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• Problem: The adapter stops working for no apparent reason. Solution: The network driver files may be corrupt or missing. Update the driver by referring to the "Solution" description for the procedure to make sure that the correct device driver is installed in the preceding problem. • Problem: If your computer is a Gigabit Ethernet model and you use the a speed of 1000 Mbps, the connection fails or errors occur. Solution: - Use Category 5 wiring and make sure that the network cable is securely connected. - Connect to a 1000 BASE-T hub/switch (not 1000 BASE-X). • Problem: Your computer cannot connect to the network at 1000 Mbps. Instead, it connects at 100 Mbps. Solution: - Try another cable. - Make sure that the link partner is set to auto-negotiate. - Make sure that the switch is 802.3ab-compliant (gigabit over copper). A wireless LAN problem • Problem: You cannot connect using the built-in wireless networking card. Solution: Make sure that your wireless LAN driver is the latest version installed. Check the Web site and confirm the driver version supported by Access Connections is the latest documented in the README file. Make sure that your computer is within range of a wireless access point. Make sure that the wireless radio is enabled by double-clicking the Access Connections icon in the task bar. Note: If your computer is a Windows 7 model, to display the Access Connections status icon and the wireless status icon in the system tray, refer to the Access Connections on-line help. Check Network Name (SSID), and your encryption information. Use Access Connections to verify this case-sensitive information. Note: Access Connections does not support connection to wireless WAN network in China. A wireless WAN problem • Message: Unauthorized WAN card is plugged in - Power off and remove the WAN card. Solution: The WAN card is not supported on this computer. Remove it. Note: Depending on your computer, some models do not have a wireless WAN. Bluetooth problems For Windows 7: • Problem: Sound does not come from the Bluetooth headset/headphone but comes from the local speaker even though the headset/headphone is connected using Headset profile or AV profile. Solution: Do the following: 1. Exit the application that uses the sound device (for example, Windows Media Player). 2. Open the Control Panel by clicking Start ➙ Control Panel. 3. Click Hardware and Sound ➙ Sound. 4. Select the Playback tab. Chapter 10. Troubleshooting computer problems 139

Section	Page
Read this first	7
Important safety information	8
Conditions that require immediate action	9
Safety guidelines	9
Chapter 1. Product Overview	19
Locating computer controls, connectors, and indicators	19
Front view	20
Right-side view	24
Left-side view	25
Bottom view	27
Rear view	28
Status indicators	29
Locating important product information	31
Machine type and model label	32
FCC ID and IC Certification number label	32
Certificate of Authenticity label	33
Features	33
ThinkPad Edge E420 features	33
ThinkPad Edge E520 features	35
Specifications	36
ThinkPad Edge E420 specifications	36
ThinkPad Edge E520 specifications	36
Operating environment	37
ThinkVantage technologies and software	37
Accessing applications in Windows 7	38
Access Connections	39
Active Protection System	39
Fingerprint Software	40
Lenovo ThinkVantage Tools	40
Lenovo ThinkVantage Toolbox	40
Message Center Plus	40
Password Manager	41
Power Manager	41
Product Recovery	41
Rescue and Recovery	41
System Update	41
ThinkVantage GPS	42
Chapter 2. Using your computer	43
Registering your computer	43
Frequently asked questions	43
Special keys and buttons	44
ThinkPad Edge E420 special keys	45
Thinkpad Edge E520 special keys	46
Using the UltraNav pointing device	49
Using the TrackPoint pointing device	49
Using the touch pad	51
Behavior of the UltraNav and an external mouse	52
Adding the UltraNav icon to the system tray	52
Power management	53
Checking battery status	53
Using the ac power adapter	53
Charging the battery	54
Maximizing battery life	54
Managing your battery power	54
Power-saving modes	55
Handling the battery	56
Connecting to the network	58
Ethernet connections	58
Wireless connections	58
Using a projector or external display	65
Changing display settings	65
Connecting a projector or external display	66
Using dual displays	68
Using audio features	69
Using an integrated camera	70
Using optical drive	70
Using an ExpressCard or a Flash Media Card	71
Inserting a card	71
Removing the card	72
Chapter 3. You and your computer	73
Accessibility and comfort	73
Ergonomic information	73
Adjusting your computer to fit you	74
Accessibility information	75
Traveling with your computer	75
Travel tips	75
Travel accessories	76
Chapter 4. Security	77
Attaching a mechanical lock	77
Using passwords	77
Passwords and sleep (standby) mode	78
Typing passwords	78
Power-on password	78
Hard disk passwords	79
Supervisor password	81
Hard disk security	82
Using a fingerprint reader	83
Notice on deleting data from your hard disk drive	85
Using and understanding firewalls	85
Protecting data against viruses	85
Chapter 5. Recovery overview	87
Creating and using recovery media	87
Creating recovery media	88
Using recovery media	88
Performing backup and recovery operations	89
Performing a backup operation	89
Performing a recovery operation	89
Using the Rescue and Recovery workspace	90
Creating and using a rescue medium	91
Creating a rescue medium	91
Using a rescue medium	91
Reinstalling preinstalled applications and device drivers	92
Solving recovery problems	93
Chapter 6. Replacing devices	95
Static electricity prevention	95
Replacing the battery	95
Replacing the hard disk drive	97
Replacing the optical drive	100
ThinkPad Edge E420	100
ThinkPad Edge E520	103
Installing and replacing the PCI Express Mini Card for wireless WAN	104
Installing and replacing a PCI Express Mini Card for wireless LAN/WiMAX connection	108
Replacing memory	111
Replacing the keyboard	113
ThinkPad Edge E420	113
ThinkPad Edge E520	117
Replacing the SIM card	121
Chapter 7. Enhancing your computer	123
Finding ThinkPad options	123
Chapter 8. Advanced configuration	125
Installing a new operating system	125
Before you begin	125
Installing Windows 7	126
Installing Windows XP	127
Installing device drivers	129
Installing the driver for 4-in-1 media card reader	129
Installing ThinkPad Monitor File for Windows 2000/XP/Vista/7	129
Installing Intel Chipset Support for Windows 2000/XP/Vista/7	130
Installing drivers and software	130
ThinkPad Setup	131
Config menu	132
Date and time menu	132
Security menu	132
Startup menu	133
Restart menu	134
ThinkPad Setup items	135
Updating your system UEFI BIOS	141
Chapter 9. Preventing problems	143
General tips for preventing problems	143
Making sure device drivers are current	144
Getting the latest drivers from the Web site	144
Getting the latest drivers using System Update	144
Taking care of your computer	145
Cleaning the cover of your computer	147
Chapter 10. Troubleshooting computer problems	149
Diagnosing programs	149
Using Lenovo ThinkVantage Toolbox	149
Troubleshooting	149
Computer stops responding	150
Spills on the keyboard	150
Error messages	151
Errors without messages	154
Beep errors	155
Memory problems	155
Networking	156
Keyboard and other pointing devices	160
Display and multimedia devices	161
Fingerprint reader problems	168
Battery and power	169
Drives and other storage devices	172
Software problems	173
Ports and connectors	174
Chapter 11. Getting support	175
Before you contact Lenovo	175
Register your computer	175
Download system updates	175
Record information	175
Getting help and service	176
Using diagnostic programs	176
Lenovo support Web site	176
Calling Lenovo	176
Purchasing additional services	181
Appendix A. Regulatory information	183
Wireless related information	183
Location of the UltraConnect wireless antennas	184
Locating wireless regulatory notices	185
Export classification notice	186
Electronic emission notices	186
Federal Communications Commission Declaration of Conformity	186
Industry Canada Class B emission compliance statement	186
European Union - Compliance to the Electromagnetic Compatibility Directive	187
German Class B compliance statement	187
Korea Class B compliance statement	188
Japan VCCI Class B compliance statement	188
Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase	188
Lenovo product service information for Taiwan	188
Additional regulatory information	188
Appendix B. WEEE and recycling statements	189
EU WEEE statements	189
Japan recycling statements	189
Appendix C. Notices	191

Match case Limit results 1 per page

•

Problem

: The adapter stops working for no apparent reason.

Solution

: The network driver ﬁles may be corrupt or missing. Update the driver by referring to the

“Solution” description for the procedure to make sure that the correct device driver is installed in the

preceding problem.

•

Problem

: If your computer is a Gigabit Ethernet model and you use the a speed of 1000 Mbps, the

connection fails or errors occur.

Solution

–

Use Category 5 wiring and make sure that the network cable is securely connected.

–

Connect to a 1000 BASE-T hub/switch (not 1000 BASE-X).

•

Problem

: Your computer cannot connect to the network at 1000 Mbps. Instead, it connects at 100 Mbps.

Solution

–

Try another cable.

–

Make sure that the link partner is set to auto-negotiate.

–

Make sure that the switch is 802.3ab-compliant (gigabit over copper).

A wireless LAN problem

•

Problem

: You cannot connect using the built-in wireless networking card.

Solution

: Make sure that your wireless LAN driver is the latest version installed. Check the Web site and

conﬁrm the driver version supported by Access Connections is the latest documented in the README ﬁle.

Make sure that your computer is within range of a wireless access point.

Make sure that the wireless radio is enabled by double-clicking the Access Connections icon in the

task bar.

Note:

If your computer is a Windows 7 model, to display the Access Connections status icon and the

wireless status icon in the system tray, refer to the Access Connections on-line help.

Check Network Name (SSID), and your encryption information. Use Access Connections to verify this

case-sensitive information.

Note:

Access Connections does not support connection to wireless WAN network in China.

A wireless WAN problem

•

Message

: Unauthorized WAN card is plugged in - Power off and remove the WAN card.

Solution

: The WAN card is not supported on this computer. Remove it.

Note:

Depending on your computer, some models do not have a wireless WAN.

Bluetooth problems

For Windows 7:

•

Problem

: Sound does not come from the

Bluetooth

headset/headphone but comes from the local

speaker even though the headset/headphone is connected using Headset proﬁle or AV proﬁle.

Solution

: Do the following:

1. Exit the application that uses the sound device (for example, Windows Media Player).

2. Open the Control Panel by clicking

Start

➙

Control Panel

3. Click

Hardware and Sound

➙

Sound

4. Select the

Playback

tab.

Chapter 10

Troubleshooting computer problems

139