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Lenovo IdeaPad U300/U300s/U400 User Guide
This guide introduces the Lenovo IdeaPad U300, U300s, and U400 series, covering safety notices, hardware overview, and basic usage. It includes chapters on getting to know the computer, new features such as Rapid Boot and Quick Charge, and instructions for using the touchpad, keyboard, and integrated camera.
Additional sections cover connecting to wired and wireless networks, using the OneKey Rescue system, and troubleshooting tips. Contact information for Lenovo technical support is provided at the end of the document.
Lenovo U400 specifications
| Assumed operating system | Windows 7 |
|---|---|
| Rapid Boot availability | Select models only |
| Intel Rapid Start Technology | For IdeaPad U300s series only |
| Hybrid Power Supply | For IdeaPad U400 series only |
| Quick Charge | For IdeaPad U300s series only |
All Lenovo U400 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What should I read before using the Lenovo IdeaPad?
You should read the Lenovo Safety and General Information Guide first.
How do I open the OneKey Rescue system?
Press the OneKey Rescue button when the computer is powered off.
How can I get support or drivers for my IdeaPad?
Visit Lenovo’s website (http://www.lenovo.com.cn) and use the “Service & Support” section to enter your serial number for configuration, warranty, and driver information.
What does the One‑Key System Rescue button do?
When the computer is powered off, pressing the One‑Key System Rescue button starts the rescue system to help recover the OS.