This is the Joybook R4A/R4B series user manual, which mainly introduces the functions, features, usage methods and precautions of this machine
This manual covers everything you need to get started with the Joybook R4A/R4B notebook, including unpacking, battery installation, power connection, and initial Windows setup. It also explains how to expand performance with external devices and how to use built‑in features such as the webcam, wireless networking, and HDMI output.
In addition, the guide provides detailed safety information, battery and power‑adapter handling, BIOS configuration, troubleshooting tips, and service‑support contacts. All instructions are illustrated with diagrams of the notebook’s front, side, and rear views. This manual is written in Chinese.
Slide the power switch to the right; the power‑indicator light will turn blue.
Connect a VGA cable to the 15‑pin D‑sub video jack and press Fn + F7 to switch displays.
Only use the battery recommended by the manufacturer; improper replacement may cause explosion.