Hp ProBook 6440b Notebook-PC User Manual Page 39
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- Table of contents
- TROUBLESHOOTING
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7. Insert the SIM into the SIM slot, and gently push the SIM into the slot until it is firmly seated.
8. Replace the battery.
NOTE: HP Mobile Broadband will be disabled if the battery is not replaced.
9. Reconnect external power.
10. Reconnect external devices.
11. Turn on the computer.
Removing a SIM
To remove a SIM:
1. Shut down the computer. If you are not sure whether the computer is off or in Hibernation, turn the
computer on by pressing the power button. Then shut down the computer through the operating
system.
2. Close the display.
3. Disconnect all external devices connected to the computer.
4. Unplug the power cord from the AC outlet.
5. Turn the computer upside down on a flat surface, with the battery bay toward you.
6. Remove the battery.
Using HP Mobile Broadband (select models only) 29
- HP ProBook User Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Features 11
- 2 Chapter 1 Features 12
- Identifying hardware 3 13
- 4 Chapter 1 Features 14
- Identifying hardware 5 15
- 6 Chapter 1 Features 16
- Identifying hardware 7 17
- 8 Chapter 1 Features 18
- Identifying hardware 9 19
- Front components 20
- Right-side components 21
- 12 Chapter 1 Features 22
- Left-side components 23
- Rear components 24
- Bottom components 25
- Display components 26
- Identifying hardware 17 27
- 18 Chapter 1 Features 28
- Identifying the labels 29
- Using the wireless controls 32
- Using the wireless button 32
- Network and Sharing Center 34
- Setting up a WLAN 35
- Protecting your WLAN 35
- Connecting to a WLAN 37
- Roaming to another network 37
- Inserting a SIM 38
- Removing a SIM 39
- WLAN connection is very weak 44
- Connecting a modem cable 45
- Selecting a location setting 46
- Using pointing devices 50
- Using the keyboard 50
- Displaying system information 51
- Initiating Sleep 52
- Switching the screen image 53
- Displaying Power Assistant 54
- Decreasing screen brightness 55
- Increasing screen brightness 55
- Using HP QuickLook 3 56
- Using keypads 56
- 4 Multimedia 60
- Multimedia software 61
- Checking your audio functions 63
- Using the DisplayPort 65
- Identifying the optical drive 67
- CD-R discs 68
- CD-RW discs 68
- DVD±R discs 68
- DVD±RW discs 68
- LightScribe DVD+R discs 68
- Playing a CD, DVD, or BD 69
- Configuring AutoPlay 70
- Changing DVD region settings 70
- Copying a CD, DVD, or BD 71
- Troubleshooting 72
- A disc does not play 74
- Webcam (select models only) 78
- 5 Power management 81
- Using the battery meter 82
- Using power plans 82
- Customizing power plans 83
- Using external AC power 84
- Using battery power 85
- Using Battery Check 86
- Charging a battery 88
- Managing low battery levels 89
- Calibrating a battery 90
- Step 3: Discharge the battery 91
- Conserving battery power 93
- Storing a battery 93
- Disposing of a used battery 94
- Replacing the battery 94
- Testing an AC adapter 95
- Shutting down the computer 95
- Identifying installed drives 97
- Handling drives 97
- Using Disk Defragmenter 99
- Using Disk Cleanup 99
- Using HP 3D DriveGuard 100
- 7. Replace the battery 104
- 9. Turn on the computer 104
- 94 Chapter 6 Drives 104
- Replacing a hard drive 105
- Replacing an optical drive 108
- 5. Turn on the computer 110
- 100 Chapter 6 Drives 110
- 3. Replace the battery 110
- 7 External devices 111
- Using USB legacy support 112
- Using a 1394 device 113
- 4. Remove the device 114
- Using external drives 116
- Using a docking device 117
- 8 External media cards 118
- Configuring an ExpressCard 120
- Inserting an ExpressCard 120
- Inserting a smart card 123
- Removing a smart card 123
- 9 Memory modules 124
- 14. Replace the batteries 127
- 16. Turn on the computer 127
- 18. Replace the batteries 131
- 20. Turn on the computer 131
- 10 Security 132
- Using passwords 133
- BIOS administrator password 134
- Setting a DriveLock password 137
- Entering a DriveLock password 138
- Changing a DriveLock password 139
- Removing DriveLock protection 140
- Securing system devices 142
- Using antivirus software 144
- Using firewall software 145
- Installing critical updates 146
- ProtectTools software Help 147
- Installing a security cable 148
- 11 Software updates 149
- Updating the BIOS 151
- Updating programs and drivers 153
- 12 Backup and recovery 154
- Backing up your information 155
- Performing a recovery 156
- Using f11 recovery tools 157
- 5. Click Next 158
- 13 Computer Setup 159
- Computer Setup menus 160
- File menu 161
- Security menu 161
- System Configuration menu 162
- Computer Setup menus 153 163
- Computer Setup menus 155 165
- 14 MultiBoot 166
- 15 Management and printing 172
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