–When the TrackPoint pointing device is kept pressed for a long time

–When the temperature changes

•Problem: The TrackPoint pointing device or touch pad does not work.

Solution: Make sure that the TrackPoint pointing device or touch pad is enabled in the UltraNav Device Setting window.

Keyboard problems

•Problem: All or some keys on the keyboard do not work.

Solution: If an external numeric keypad is connected:

1.Turn off the computer.

2.Remove the external numeric keypad.

3.Turn on the computer and try using the keyboard again.

If the keyboard problem is resolved, carefully reconnect the external numeric keypad and the external keyboard. Make sure that you have seated the connectors correctly.

If the problem persists, make sure that the correct device driver is installed by doing the following:

1.Open Control Panel. Change the view of Control Panel from Category to Large icons or Small icons.

2.Click Keyboard.

3.Select the Hardware tab. In the Device Properties pane, make sure that you see this message: Device Status: This device is working properly.

If keys on the keyboard still do not work, have the computer serviced.

•Problem: All or some keys on the external numeric keypad do not work.

Solution: Make sure that the external numeric keypad is correctly connected to the computer.

Display and multimedia devices

This topic includes the most common problems with displays and multimedia devices, including the computer display, the external monitor, audio devices, and the optical drive.

Computer screen problems

•Problem: The screen is blank.

Solution: Do the following:

–Press Fn+F7 to bring up the image.

–If you are using the ac power adapter, or using the battery and the battery status indicator is on (is green), press Fn+F9 to make the screen brighter.

–If the sleep status indicator is on (is green), press Fn to resume from the sleep mode.

–If the problem persists, follow the solution for the following problem.

•Problem: The screen is unreadable or distorted.

Solution: Make sure that:

–The display device driver is installed correctly.

–The screen resolution and color quality are correctly set.

–The monitor type is correct.

To check these settings, do the following:

1.Right-click on the desktop, and click Personalize.

2.Click Display at the left.

Chapter 10. Troubleshooting computer problems 145

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Lenovo 2355AK4, T430SI manual Display and multimedia devices, Keyboard problems, Computer screen problems, Click Keyboard
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T430S, T430SI, 2355AK4 specifications

Lenovo has long been a key player in the laptop market, providing robust machines that cater to business and professional needs. Among its impressive lineup are the Lenovo 2355AK4, T430SI, and T430S models, renowned for their performance, portability, and innovative features.

The Lenovo 2355AK4 is a laptop that emphasizes reliable performance. It is equipped with an Intel Core i5 processor, which delivers efficient multitasking and smooth operation for various applications. The 15.6-inch display offers a resolution sufficient for everyday tasks, making it ideal for professionals on the go. Its portability is enhanced by a lightweight design, allowing users to carry it without significant strain. The battery life is another strong point, providing extended usage to keep up with a busy schedule.

Next in line is the Lenovo T430SI, a model that stands out with its exceptional build quality and durability. This laptop is designed for intense use, making it suitable for professionals who need a device that can withstand the rigors of daily demands. The T430SI features a 14-inch display, combining portability with usability. One of its key characteristics is the inclusion of Intel's vPro technology, which enhances security and simplifies IT management. Additionally, the T430SI comes with a variety of connectivity options, including USB 3.0 ports and Thunderbolt, catering to various peripheral needs.

Finally, the Lenovo T430S is a more lightweight variant of the T430 series, prioritizing both performance and portability. It boasts an innovative design, featuring a 14-inch HD display that offers vibrant visuals and exceptional viewing angles. The T430S utilizes the latest Intel processors, ensuring powerful performance that is further supported by robust SSD options for faster data access. With a sleek profile and a weight of just over 3 pounds, this model is perfect for professionals who travel frequently.

In summary, the Lenovo 2355AK4, T430SI, and T430S boast features that cater to different professional needs. From the reliable performance of the 2355AK4 to the durability of the T430SI and the portability of the T430S, each model showcases Lenovo's commitment to providing innovative solutions for users requiring efficiency and versatility in their devices. Whether for business meetings, remote work, or on-the-go tasks, these laptops stand out as reliable companions for the modern professional.
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