Sleep or hibernation problems

Problem

Solution

 

 

The critical low-battery error message appears, and the

The battery power is getting low. Connect the ac power

computer immediately turns off.

adapter to the computer, or replace the battery with a

 

fully charged one.

 

 

The computer enters sleep mode immediately after

Make sure that:

Power-on self-test (POST).

• The battery is charged.

 

 

• The operating temperature is within the acceptable

 

range. See “Use and care information” in the Safety

 

and Warranty Guide that comes with your computer.

 

 

Computer screen problems

Problem

Solution

 

 

The screen is blank.

• Do the following:

 

– If you are using the ac power adapter, or using the

 

battery, and the battery status indicator is on, press

 

Fn+up arrow to make the screen brighter.

 

– If the power indicator is in blinking, press the power

 

button to resume from the sleep mode.

 

– If the problem persist, follow the solution in the

 

following problem “The screen is unreadable or

 

distorted.”

 

– Press Fn+F2 to confirm whether the LCD screen has

 

been turned off.

 

 

The screen is unreadable or distorted.

Make sure that:

 

• The display device driver is installed correctly.

 

• The screen resolution and color quality are correctly

 

set.

 

• The monitor type is correct.

 

 

Incorrect characters appear on the screen.

Did you install the operating system or application

 

program correctly? If they are installed and configured

 

correctly, have the computer serviced.

 

 

Sound problems

Problem

Solution

 

 

No sound can be heard from the speaker even when the

Make sure that:

volume is turned up.

• The mute function is off.

 

 

• The headphone jack is not used.

 

• Speakers are selected as the playback device.

 

 

Chapter 5. Troubleshooting 25

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Lenovo B470E manual Sleep or hibernation problems, Computer screen problems, Sound problems
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B470E specifications

The Lenovo B470E is a budget-friendly laptop that caters to both personal and professional users seeking a reliable computing solution. With its sleek design and functional features, it stands out as a practical choice for anyone needing a dependable device for everyday tasks.

At the heart of the Lenovo B470E lies a robust Intel processor, typically ranging from Core i3 to i5, which delivers impressive performance for a wide array of applications. The laptop is well-suited for multitasking, allowing users to run multiple programs simultaneously without significant slowdowns. Its efficient processing capabilities ensure smooth operation whether you’re browsing the internet, streaming videos, or working on documents.

One of the notable features of the B470E is its 14-inch display, which provides ample screen space while maintaining portability. The display typically comes with a resolution of 1366 x 768, offering decent clarity for most tasks. Additionally, it features anti-glare technology, reducing reflections and providing a comfortable viewing experience in various lighting conditions.

The keyboard of the B470E is designed for comfortable typing, featuring a full-sized layout with a numeric keypad. The keys are well spaced and provide a satisfactory tactile response, making it an excellent choice for users who spend long hours on their laptops. Furthermore, the laptop incorporates a multi-touch trackpad, enabling intuitive navigation and gesture controls.

Storage options for the Lenovo B470E often include a traditional hard disk drive (HDD), typically starting from 500GB. This ample storage capacity accommodates a large volume of files, documents, and media. In some models, users can opt for a solid-state drive (SSD), providing faster data access and improving overall system responsiveness.

Connectivity is another strong point for the B470E, as it features various ports, including USB 2.0, USB 3.0, HDMI, and VGA outputs. This versatility allows users to connect external devices such as printers, projectors, and additional storage solutions without hassle.

Additionally, the Lenovo B470E offers essential wireless connectivity options, including Wi-Fi and Bluetooth, enabling seamless connection to networks and peripherals.

In terms of battery life, the B470E is designed to last through a full workday under normal usage conditions, making it a reliable companion for users on the go.

Overall, the Lenovo B470E presents a balanced combination of performance, portability, and value, making it an ideal choice for students, professionals, and casual users alike. Its blend of essential features and user-friendly design ensures that it meets the demands of everyday computing tasks efficiently.
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