Replacing the SIM card

5. Position the new backup battery in place, then attach the connector.

6.Reinstall the keyboard. For more details, refer to Replacing the keyboard.

7.Turn the computer over again. Connect the ac power adapter and cables to the computer.

Your computer may require a SIM (Subscriber Identification Module) card to establish a wireless WAN (Wide Area Network) connection. Depending on the country of delivery, the SIM card may be already installed in your computer or will be part of the shipping contents that came with your computer.

If you find the SIM cards included in the shipping contents, a dummy card is installed in the SIM card slot. Then proceed to the following instructions.

If you find the dummy card in the shipping contents, the SIM card is already installed in the SIM card slot, and no further installation is needed.

Note: The SIM card is identified by the IC chip mounted on one side of the card.

86User Guide

Page 102

Image 102

Lenovo 3444CUU manual Replacing the SIM card

3444CUU specifications

The Lenovo 3444CUU is a versatile laptop designed to cater to a wide range of user needs, from business professionals to students. This model stands out due to its solid build quality, innovative technologies, and user-friendly features.

At the heart of the Lenovo 3444CUU lies an efficient Intel processor, designed to handle everyday computing tasks with ease. The inclusion of powerful integrated graphics ensures smooth performance during both productivity tasks and casual gaming sessions. With an ample amount of RAM, users can multitask seamlessly, switching between applications without experiencing any lag.

One of the most significant highlights of the Lenovo 3444CUU is its stunning display. The laptop is equipped with a high-definition screen that delivers vibrant colors and sharp visuals, making it ideal for watching movies, editing photos, or presenting slideshows. The anti-glare technology incorporated into the display reduces reflections, enabling comfortable viewing in various lighting conditions.

The design of the Lenovo 3444CUU emphasizes portability and convenience. It boasts a lightweight chassis, allowing users to easily carry it along for meetings or classes. The ergonomic keyboard provides a comfortable typing experience, complete with responsive keys that enhance productivity during long typing sessions. Additionally, the touchpad is accurate and supports multi-touch gestures for easy navigation.

Connectivity is a strong point for the Lenovo 3444CUU. It features multiple USB ports, an HDMI output, and an SD card reader, ensuring compatibility with a wide range of peripherals and devices. Wi-Fi and Bluetooth capabilities provide reliable wireless connectivity for seamless internet access and peripheral connections.

The battery life of the Lenovo 3444CUU is commendable, lasting throughout a full day of work or study on a single charge. This feature is particularly beneficial for users who are frequently on-the-go, eliminating the need to search for power outlets.

In terms of security, the Lenovo 3444CUU includes advanced features like a fingerprint reader and a secure BIOS, providing users with peace of mind. These technologies help protect sensitive data and ensure that only authorized users have access to the device.

Overall, the Lenovo 3444CUU stands out as a reliable, efficient, and feature-rich laptop suitable for various tasks, making it an excellent choice for anyone in need of a dependable computing solution. Its blend of performance, portability, and security features caters to the demands of modern users, making it a noteworthy addition to Lenovo’s diverse laptop lineup.

Contents

User Guide Safety and Warranty Guide Regulatory Notice Contents Recovery overview Appendix B. Weee and recycling statements Iv User Guide Read this first Prevent your computer from getting wetProtect the cables from being damaged Handle your computer gently Important safety informationProtect your computer and data when moving it Carry your computer carefully Safety guidelines Service and upgradesConditions that require immediate action Power cords and power adapters Power supply statement Extension cords and related devicesPlugs and outlets External devices Batteries Rechargeable battery notice Lithium coin cell battery notice Heat and product ventilation Electrical current safety information Liquid crystal display notice Using headphones or earphones Additional safety informationDo not connect phone line while using tablet mode Locating computer controls, connectors, and indicators Product Overview UltraConnect wireless antennas Front viewIntegrated camera Volume control buttons System status indicatorsPower switch Computer display Bluetooth antenna some models Memory-upgrade slotRight-side view Left-side view Fan louvers Bottom viewCombo audio jack Hard disk drive or solid state drive Rear view Mini DisplayPort connector Power jackESATA/Always on USB combo connector rear USB connector rear Power status indicator Status indicatorsSystem-status indicators Device Access status indicator Sleep status indicator Battery status indicator Locating important product information Bluetooth status indicatorWireless LAN/WAN/WiMAX status indicator Machine type and model label FCC ID and IC Certification number label Processor FeaturesCertificate of Authenticity label Memory Display Wireless featuresSecurity features Keyboard Specifications Operating environment Accessing applications in Windows ThinkVantage Technologies Applications in Control Panel Active Protection System Access ConnectionsClient Security Solution Fingerprint Software Product Recovery Password ManagerPower Manager Rescue and Recovery User Guide Using your computer Frequently asked questionsRegistering your computer Getting connected in different locations is a challenge? Special keys and buttonsThinkVantage button Need to attach or replace a device? Function key combinations Power conservation Fn+F2Switching a display output location Fn+F7 Fn+F3 Multimedia control Enabling or disabling the wireless features Fn+F5Launching the camera and audio settings Fn+F6 Other functions Setting the volume Volume and mute buttonsMicrophone mute Volume control button Speaker mute button Setting the microphone mute button Application key Using the UltraNav pointing deviceWindows key and Application key Windows key Using the TrackPoint pointing device Click Start Control Panel Hardware and Sound Mouse UltraNav Using the touch pad Customizing the TrackPointChanging the cap Using the multi-touch touch pad Adding the UltraNav icon to the system tray Power managementBehavior of the UltraNav and an external mouse Customizing the touch pad Checking battery status Using the ac power adapterCharging the battery Maximizing battery life Managing your battery powerPower-saving modes Hibernation Handling the batteryClick the Global Power Settings tab Enabling the wakeup function Connecting to the network Wireless connections Making wireless LAN connectionsEthernet connections Wireless networking setup Using wireless WAN connectionsTips for using the wireless LAN feature Wireless security features Select Send To Bluetooth Devices Using the Microsoft Bluetooth softwareClick Start Control Panel Click Printers and Other Hardware My Bluetooth Places Bluetooth Configuration Access Connections Gauge Using WiMAXChecking wireless connection status Access Connections icon and wireless status icon Enabling or disabling the wireless feature Click Power On Wireless RadioClick Power Off Wireless Radio Connecting an external display Using an external displayChanging display settings Attaching an external monitor Setting the monitor types Set Resolution Click Advanced SettingsConsiderations for attaching an external monitor Using the Extend desktop function Using dual displaysUsing the Mini DisplayPort connector Enabling the Extend desktop function Beam Forming feature Using a color profileUsing audio features Configuring for sound recording Configuring camera settings Using an integrated cameraUsing the media card reader Adjusting the video output of your camera Inserting a flash media card Removing a flash media cardRight-click the Safely Remove Hardware and Eject Media icon Accessibility and comfort You and your computerErgonomic information Adjusting your computer to fit you What if you are traveling? FullScreen Magnifier function Accessibility informationClick Ease of Access Click Ease of Access Center Assistive technologies Travel tips Travel accessoriesTraveling with your computer Travel tips on airplanes Using passwords SecurityAttaching a mechanical lock Power-on password Passwords and sleep modeTyping passwords Setting a power-on password Hard disk passwords Changing or removing the power-on passwordSetting a hard disk password Changing or removing a hard disk password Supervisor password Setting a supervisor password Select Supervisor PasswordChanging or removing the supervisor password Setting the security chip Using Windows BitLocker Drive EncryptionHard disk security Setting the Security Chip LED behavior of the fingerprint reader Using a fingerprint readerEnrolling your fingerprint Swiping your finger over the reader Logging on to the system Setting the fingerprint reader Care for the fingerprint reader Using and understanding firewalls Protecting data against viruses User Guide Recovery overview Creating and using recovery media Performing backup and recovery operations Creating recovery mediaUsing recovery media Performing a backup operation Performing a recovery operation Using the Rescue and Recovery workspaceClick the Restore your system from a backup icon Creating and using a rescue medium Using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications and device drivers Reinstalling preinstalled applicationsReinstalling preinstalled device drivers Solving recovery problems Static electricity prevention Select Disable Built-in BatteryReplacing devices Before replacing CRU Prerequisites for the procedure Replacing the hard disk drive or solid state driveReplacing the hard disk drive Replacing devices Replacing the keyboard Replacing the solid state driveRemoving the keyboard Replacing devices Installing the keyboard Replacing memory Replacing memory Prerequisites for the procedure User Guide Prerequisites for the procedure User Guide Installing and replacing the mSATA solid state drive Replacing the mSATA solid state drive Replacing the backup battery Replacing the SIM card Installing the SIM card Removing the SIM card Clinch the SIM card slot cover User Guide Connector ThinkPad Battery 39+ 6-cell slice batteryThinkPad Battery 39+ top view Enhancing your computer Battery latch ThinkPad Battery 39+ bottom viewAttaching a ThinkPad Battery 39+ Eject lever Enhancing your computer Detaching a ThinkPad Battery 39+ Charging a ThinkPad Battery 39+ User Guide Before you begin Advanced configurationInstalling a new operating system Country or region Code Installing Registry Patches for Windows Installing WindowsSelect UEFI/Legacy Boot Installing the Windows 7 Update Module Package Installing device drivers Click Change display settings Click Advanced SettingsClick Properties Installing other device drivers ThinkPad Setup Config menu Date/Time menu Security menu Hard Disk x Password Startup menuChanging the startup sequence Boot submenu Priority for booting USB devices Config menu items ThinkPad Setup itemsNetwork Boot Restart menu USB Display Beep and Alarm Ahci Security menu items External Internal If External Internal is selected Uefi Bios Update Option Port Access Priority setting Startup menu items System management Updating your system Uefi BiosUsing system management Desktop Management Interface Setting up in the ThinkPad Setup Setting management featuresPreboot eXecution Environment Wake on LAN Network Boot sequence Flash updateTo define a sequence Preventing problems General tips for preventing problems117 Getting the latest drivers from the Web site Getting the latest drivers using System UpdateMaking sure device drivers are current Click Downloads and drivers Be gentle with your computer Be careful about where and how you workTaking care of your computer Carry your computer properly Cleaning the cover of your computer Take care in setting passwordsRegister your computer Be sure not to modify your computer Cleaning your computer keyboard Cleaning your computer display User Guide Troubleshooting Troubleshooting computer problemsUsing Lenovo ThinkVantage Toolbox Diagnosing programs Error messages Spills on the keyboardIf you spill something on your computer Troubleshooting computer problems User Guide Errors without messages Message Fan error Ethernet problems Beep errorsMemory problems Networking Wireless LAN problem Solution Keyboard and other pointing devices Wireless WAN problemUltraNav problems Click Hardware and Sound Sound Display and multimedia devices Keyboard problemsComputer screen problems Mouse UltraNav External monitor problems Set Resolution Click Advanced Settings Audio problems Click Start Control Panel Click Hardware and SoundDouble-clickSound, video and game controllers Battery problems Fingerprint reader problemsBattery and power Click Start Control Panel All Control Panel Items AC power adapter problems Power problems Power button problem Startup problemsSleep and hibernation problems Hard disk drive problems Drives and other storage devices Solid state drive problems Software problemsPorts and connectors Universal Serial Bus problems Before you contact Lenovo Download system updatesGetting support Record information Lenovo Support Web site Getting help and serviceUsing diagnostic programs Calling Lenovo Telephone numbers Country or Region Telephone Number Country or Region Telephone Number Country or Region Telephone Number Rucis Purchasing additional services User Guide Appendix A. Regulatory information Wireless related informationWireless interoperability Usage environment and your health Location of the UltraConnect wireless antennas Electronic emission notices Locating wireless regulatory noticesExport classification notice Federal Communications Commission Declaration of Conformity Industry Canada Class B emission compliance statement German Class B compliance statementDeutschland Appendix A. Regulatory information User Guide Japan recycling statements Appendix B. Weee and recycling statementsEU Weee statements 155 Disposing of disused lithium batteries from Lenovo computers Appendix C. Notices 157 Trademarks Page Part Number Printed 1P P/N