This manual introduces the use of Joybook Lite U121 Eco series, including user manual, quick start, using keyboard, using touchpad, using the built-in wireless connection function, using Bluetooth function, using webcam, using system BIOS settings and other content.
This manual covers safety notices, packaging contents, and step‑by‑step installation of the battery and power adapter for the Joybook Lite U121 Eco Series notebook. It explains how to power on the device, configure BIOS settings, use the built‑in wireless and Bluetooth functions, and operate the optional WebCam Companion 3.
Later sections describe system recovery with QDataTrove, battery maintenance, common troubleshooting procedures, and regulatory compliance information such as the Declaration of Conformity and applicable EMC standards. This manual is written in Chinese.
| Model designation | Joybook Lite U121 Eco Series (DH1200) |
|---|---|
| Equipment type | Notebook |