•Problem: When you connect a headphone to your computer while playing sound, a speaker does not produce sound in the MULTI-STREAM mode at SmartAudio (Windows 7).

Solution: Once the headphone is attached, the streaming is automatically redirected to it. If you want to listen to sound from the speakers again, be sure to set those speakers as the default device. The procedure is as follows:

1.Click Start ➙ Control Panel ➙ All Control Panel Items.

2.Click the SmartAudio icon. The SmartAudio window opens.

3.Look at the playback devices. If you have attached a headphone, the headphone will be automatically set as the default device, and the icon for that headphone will be checked.

4.To set a different device as the default, just double-click the icon for those speakers. That icon will now have a check mark.

5.Play any sound by use of a music program such as Windows Media Player. Make sure that sound comes from the speakers.

For details, refer to the Help for SmartAudio.

Fingerprint reader problems

•Problem: The surface of the reader is dirty, stained, or wet.

Solution: Gently clean the surface of the reader with a dry, soft, lint-free cloth.

•Problem: The reader often fails to enroll or authenticate your fingerprint.

Solution: If the surface of the reader is dirty, stained, or wet, gently clean the surface of the reader with a dry, soft, lint-free cloth.

If your finger has any of the following conditions, you may not be able to register or authenticate it:

–Your finger is wrinkled.

–Your finger is rough, dry, or injured.

–Your finger is very dry.

–Your finger is stained with dirt, mud, or oil.

–The surface of your finger is very different from the one you used when you enrolled your fingerprint.

–Your finger is wet.

–A finger that has not been enrolled is used.

To improve the situation, try the following:

–Clean or wipe your hands to remove any excess dirt or moisture from the fingers.

–Enroll and use a different finger for authentication.

–If your hands are too dry, apply lotion to them.

Battery and power

This section tells what to do if you have a battery and power problem.

This section includes five topics: Battery, ac power adapter, Power, Power button, Startup and Sleep (standby) and hibernation. Check these topics to find the related information.

Battery problems

•Problem: The battery pack cannot be fully charged by the power-off method in the standard charge time for your computer.

Solution: The battery pack might be over-discharged. Do the following:

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Lenovo 428742U, X220I TABLET, X220 TABLET, X220-4287 Fingerprint reader problems, Battery and power, Battery problems
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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.

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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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