–The application is designed to operate with your operating system.

–Other applications run correctly on your computer.

–The necessary device drivers are installed.

–The application works when it is run on some other computer.

If an error message appears while you are using the application program, refer to the manuals supplied with the application.

If the application still does not run correctly, contact your place of purchase or a service representative for help.

Ports and connectors

This section includes the most common ports and connectors problems: Universal Serial Bus, and docking station or port replication.

Universal Serial Bus problems

•Problem: A device connected to the USB connector does not work.

Solution: Open the Device Manager window. Make sure that the USB device setup is correct, and that the assignment of computer resource and the installation of the device driver are correct.

For Windows 7 and Windows Vista:

1.Click Start ➙ Control Panel.

2.Click Hardware and Sound.

3.Click Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

For Windows XP:

1.Click Start ➙ Control Panel.

2.Click Performance and Maintenance, and click System.

3.Click the Hardware tab, and click the Device Manager button.

Refer to “Diagnosing problems” on page 207 and run Lenovo ThinkVantage Toolbox for a diagnostic test of the USB connector.

A docking station or port replicator problem

•Problem: The computer does not start when you try to turn it on, and does not respond when you try to resume operation.

Solution: Make sure that:

–The ac power adapter is connected to the docking station or the port replicator.

–The docking indicator of the ThinkPad Mini Dock Plus Series 3 or the ThinkPad Mini Dock Series 3 is on.

–The computer is securely attached to the docking station or the port replicator.

Chapter 10. Troubleshooting computer problems 233

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Lenovo X220-4287, X220I Ports and connectors, Universal Serial Bus problems, Docking station or port replicator problem
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4291BR6PC10B616, 42875TU, 428742U, 4294CTO, X220-4287 specifications

Lenovo's X220i, X220i Tablet, and their respective models such as 42872W5, 42912XU, and 429133U are part of the ThinkPad series, renowned for their reliability, performance, and innovative features tailored for both business and personal use. The X220i and X220i Tablet stand out in the ultrabook category, offering a perfect balance between portability and functionality, making them ideal for professionals on the go.

The X220i features a 12.5-inch display, which delivers vibrant visuals and clear text, ensuring users can work efficiently in various lighting conditions. The display options may include HD resolutions with anti-glare technology, minimizing reflections and enhancing visibility. The X220i Tablet takes portability a step further by incorporating touchscreen capabilities, allowing for a more interactive experience, which is particularly useful for presentations and drawing applications.

Under the hood, both models are powered by Intel Core processors, providing solid performance for multitasking and demanding applications. The X220i comes with options for up to 8GB of RAM, ensuring smooth operation even when handling multiple applications simultaneously. Storage options typically include fast SSDs, which not only enhance boot times but also improve file access speeds, contributing to overall responsiveness.

A key feature of the ThinkPad series is its exceptional build quality. The X220i and X220i Tablet are constructed with durable materials, including magnesium alloy and reinforced hinges, designed to withstand the rigors of daily use. Additionally, they are tested against military specifications, ensuring reliability in challenging conditions.

Connectivity options are extensive, featuring USB 3.0 ports, a VGA port, and HDMI, allowing users to connect to various peripherals and external displays. Advanced wireless connectivity options such as Wi-Fi and Bluetooth enable seamless communication and file sharing.

Battery life is another area where the X220i series excels. The laptops are designed to last an extended period on a single charge, often exceeding 8 hours, making them suitable for long workdays without the need for a power outlet.

In conclusion, the Lenovo X220i, X220i Tablet, and their variants like 42872W5, 42912XU, and 429133U are exemplary devices that blend portability, performance, and durability. Ideal for professionals and students alike, these devices cater to a range of computing needs while maintaining a compact and lightweight profile.
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