Lenovo B485 manual Computer screen problems, An ac power adapter problem, Startup problem

Page 72

The battery pack cannot be charged.

You cannot charge the battery when it is too hot. If the battery feels hot, remove it from the computer and allow it to cool to room temperature. After it cools, reinstall it and recharge the battery. If it still cannot be charged, have it serviced.

An ac power adapter problem

Print these instructions now and keep it with your computer for reference later.

The ac power adapter is connected to the computer and the working electrical outlet, but the power adapter (power plug) icon is not displayed on the taskbar. Also the ac power indicator does not light up.

Do the following:

1.Make sure that the connection of the ac power adapter is correct. For instructions on connecting the ac power adapter, see Setup Poster that comes with your computer.

2.If the connection of the ac power adapter is correct, turn off the computer, then disconnect the ac power adapter and remove the main battery.

3.Reinstall the battery and reconnect the ac power adapter, then turn on the computer.

4.If the power adapter icon still is not displayed on the taskbar and the ac power indicator does not light up, have the ac power adapter and your computer serviced.

A startup problem

Print these instructions now and keep it with your computer for reference later.

The Microsoft® Windows operating system does not start.

Use the OneKey Recovery Pro program to help solve or identify your problem. For more information, refer to Chapter 6 “OneKey Recovery Pro” on page 29.

Sleep and hibernation problems

Print these instructions now and keep it with your computer for reference later.

A critical low-battery error occurs, and the computer immediately turns off.

The battery power is getting low. Connect the ac power adapter to the computer and plug it into an electrical outlet, or replace the battery with a charged one.

The computer enters sleep mode immediately after the power-on self-test.

Make sure that:

•The battery is charged.

•The operating temperature is within the acceptable range. refer to Chapter 8 “Preventing problems” on page 51.

Computer screen problems

Print these instructions now and keep it with your computer for reference later.

The screen is blank.

Do any of 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 increase the screen brightness.

•If the power indicator is in blinking, press the power button to resume from the sleep mode.

56User Guide

Page 71 Page 73
Image 72
Page 71 Page 73
Contents User Guide Lenovo B480, B485, and B580Safety and Warranty Guide Regulatory Notice Contents Appendix C. Notices Read this first Protect yourself from the heat that your computer generatesPrevent your computer from getting wet Protect the cables from being damagedImportant safety information Protect your computer and data when moving itConditions that require immediate action Handle your computer gentlySafety guidelines Service and upgradesPower cords and power adapters Extension cords and related devicesPower supply statement Plugs and outletsExternal devices General battery notice Rechargeable battery noticeLithium coin cell battery notice Heat and product ventilation Electrical current safety information CD and DVD drive safetyUsing headphones or earphones Laser compliance statementLiquid crystal display LCD notice Additional safety information Xiv User Guide Getting to know your computer Top viewWireless module antennas Power buttonOneKey Recovery Pro program button Status indicatorsLeft-side view Right-side view Front viewBottom view Status indicators Features Power and battery status indicatorSpecifications Lenovo B480 and B485Lenovo B580 Getting to know your computer User Guide Using your computer Frequently asked questionsTips on using your computer Connecting to powerConfiguring the operating system Putting the computer into sleep mode or shutting it downUsing the ac power adapter and the battery pack Checking the battery statusUsing the ac power adapter Connecting the ac power adapterCharging the battery Maximizing the battery lifeHandling the battery Tips on using the ac power adapterUsing the touch pad Using the keyboard Numeric keypadB480 and B485 B580OneKey Recovery Pro program button Function key combinationsConnecting to external devices Using the media card readerInserting a flash media card Using USB connectors Using BluetoothUsing the Nvidia Optimus Graphics feature Enabling Bluetooth communications on your computerUser Guide Connecting to the network Wired connectionHardware connection CableSoftware configuration Wireless connectionConnecting to the network User Guide Accessibility and comfort You and your computerErgonomic information What if you are traveling? Using passwords Using a fingerprint readerSecurity Attaching a mechanical lockUser Guide OneKey Recovery Pro Solving recovery problemsUser Guide Replacing the battery Replacing devicesStatic electricity prevention Replacing the backup battery Replacing devices Lenovo B580 Prerequisites for the procedure Replacing the hard disk driveUser Guide Lenovo B580 Replacing the keyboard Replacing devices Lenovo B580 Replacing devices Replacing a memory module Replacing devices Lenovo B580 To replace the PCI Express Mini Card, do the following User Guide Lenovo B580 Removing the optical drive Lenovo B580 User Guide Preventing problems General tips for preventing problemsBe careful about where and how you work Taking care of your computerBe gentle with your computer Carry your computer properlyTake care in setting passwords Clean the cover of your computerHandle storage media and drives properly Data protectionCleaning your computer keyboard Cleaning your computer displayRegistering your computer Be sure not to modify your computerTroubleshooting computer problems TroubleshootingBattery and power problems Battery problemsComputer screen problems An ac power adapter problemStartup problem Sleep and hibernation problemsProblems with drives and other storage devices Hard disk drive problemsOneKey Recovery Pro program problems Password problemOptical drive problems Sound problem Other problemsYour computer does not respond Computer does not start from a device you wantUser Guide Wireless related information Wireless interoperabilityAppendix A. Regulatory information Export classification notice Electronic emission noticesUsage environment and your health Industry Canada Class B emission compliance statement DeutschlandUser Guide Appendix B. Weee and recycling statements China Weee statement EU Weee statementsJapan recycling statements Recycling information for Brazil Disposing of Lenovo computer componentsBattery recycling information for the European Union User Guide Appendix C. Notices Trademarks Index User Guide

B485 specifications

The Lenovo B485 is a versatile and reliable laptop, designed primarily for business professionals and students alike. With its sleek design and impressive specifications, it offers a good balance of performance and affordability. This laptop is ideal for users looking for functionality without breaking the bank.

One of the standout features of the Lenovo B485 is its AMD A-Series processor, which provides robust performance that easily handles everyday tasks such as web browsing, document editing, and multimedia consumption. The integration of the AMD Radeon graphics further enhances the visual experience, enabling users to enjoy videos and games without compromising on quality.

The B485 comes equipped with a 14-inch HD display, offering vibrant colors and sharp images. This size strikes an excellent balance between portability and usability, making it easy to carry around yet spacious enough for productive work. The anti-glare technology ensures that users can work comfortably in various lighting conditions without experiencing eye strain.

In terms of memory and storage, the Lenovo B485 offers configurations that include up to 8GB of RAM and a choice of HDD or SSD storage options. This versatility allows users to customize their device according to their needs, ensuring smooth multi-tasking and ample storage for files, documents, and media.

Connectivity is a key feature of the B485, with multiple USB ports, HDMI output, and Ethernet ports available, enabling quick and reliable connections to a variety of peripherals and networks. The presence of Wi-Fi and Bluetooth technologies ensures seamless wireless connectivity, making it easy to stay connected on the go.

The Lenovo B485 also prioritizes security with features such as a fingerprint reader and a physical webcam shutter, giving users peace of mind regarding their data and privacy. The long battery life is another notable characteristic, allowing users to work unplugged for extended periods without needing frequent recharges, enhancing productivity in various settings.

In conclusion, the Lenovo B485 embodies a practical choice for individuals seeking a dependable laptop packed with essential features. Its combination of performance, connectivity, and security makes it a suitable option for anyone in need of a reliable computer for their daily tasks.
Top Page Image Contents