i.Reinstall each device one at a time that you have removed in the earlier steps.

If your computer does not run on battery power, check the following items:

1.Remove and reset the battery to make sure that it is properly connected. Refer to “Replacing the battery” on page 89.

2.Swap batteries with another similar model, if available.

If another similar ThinkPad model is available, then verify that the battery pack works in the other computer and that the battery pack for the other model works in this computer.

3.Verify the battery-status indicator. Refer to “Power-status indicators” on page 10.

The battery-status indicator is normally illuminated whenever the battery is installed and the computer is on, or the ac power adapter is connected and the battery is charging. This indicator may be blinking or solid in either orange or green color depending on the status of the battery.

A power button problem

Problem: The system does not respond, and you cannot turn off the computer.

Solution: Turn off the computer by pressing and holding the power button for 4 seconds or more. If the system is still not reset, remove the ac power adapter and the battery.

Startup problems

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

If you receive an error message before the operating system loads, check the following item:

Follow the appropriate corrective actions for Power-on self-test. Refer to “Error messages and beep errors” on page 159.

If you receive an error message while the operating system is loading the desktop configuration after the POST is completed, check the following items:

1.Visit the Lenovo Support Web site at http://www.lenovo.com/think/support and search for the error message.

2.Visit the Microsoft Knowledge Base homepage at http://support.microsoft.com/ and search for the error message.

Sleep (standby) and hibernation problems

Problem: The computer enters sleep (standby) mode unexpectedly.

Solution: If the processor overheats, the computer automatically enter sleep (standby) mode to allow the computer to cool and to protect the processor and other internal components. Check the settings for sleep (standby) mode, using Power Manager.

Problem: The computer enters sleep (standby) mode (the sleep/standby indicator turns on) immediately after Power-on self-test.

Solution: Make sure that:

The battery is charged.

The operating temperature is within the acceptable range. Refer to “Features” on page 13, “Specifications” on page 14, and “Operating environment” on page 15.

If the battery is charged and the temperature is within range, have the computer serviced.

Problem: The “critical low-battery error” message appears, and the computer immediately turns off.

180User Guide

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Lenovo 5016W78 manual Power button problem, Startup problems, Sleep standby and hibernation problems

5016W78 specifications

The Lenovo 5016W78 is a powerful and versatile laptop designed to meet the needs of both professionals and casual users. Packed with advanced features and robust technology, this device stands out in today's competitive laptop market.

One of the key characteristics of the Lenovo 5016W78 is its design. It boasts a sleek and modern appearance, with a lightweight chassis that makes it easy to carry around. The high-quality build materials ensure durability, allowing users to rely on their laptop for daily tasks without worry.

The display is another highlight, featuring a vibrant Full HD (1920 x 1080) resolution. This crisp and clear display enhances the viewing experience, whether you are streaming videos, editing photos, or working on presentations. The anti-glare technology reduces reflections and eye strain, making it perfect for extended use.

Under the hood, the Lenovo 5016W78 is fueled by a powerful Intel Core processor, which delivers impressive performance for multitasking and demanding applications. Coupled with up to 16GB of RAM, users can run multiple applications seamlessly without experiencing any lag. The storage options include fast SSD drives, providing swift access to data and ensuring quick boot times.

Connectivity is thorough, offering a wide array of ports including USB-C, USB 3.0, HDMI, and a headphone jack. This range of connectivity makes it easy to connect to various devices such as external monitors, projectors, and peripherals. Additionally, the laptop includes built-in Wi-Fi 6 technology, ensuring robust and reliable internet connectivity for online activities.

The Lenovo 5016W78 also focuses on user experience and security. The backlit keyboard provides comfortable typing, even in low light situations, while the precision touchpad ensures easy navigation. For security, a fingerprint reader is integrated, giving users an additional layer of protection for their sensitive data.

Battery life is impressive, with up to 10 hours on a single charge, allowing users to work on the go without constantly searching for power outlets.

In summary, the Lenovo 5016W78 combines sleek design, powerful performance, and user-friendly features, making it an ideal choice for anyone seeking a dependable laptop for work or leisure. Its advanced technologies ensure it remains a relevant choice in an ever-evolving tech landscape, catering to the needs of today’s mobile and tech-savvy users.