This is the user manual of HG-M550 mobile phone, which introduces the functions of power on, power off, charging, volume adjustment, changing incoming call ringtone, redialing the last used number, making phone calls, answering calls, using function table, etc.
This guide explains how to install the SIM card and battery, power the phone on and off, adjust volume, set ringtones, and switch between scenario modes. It also describes the layout of the status bar icons and provides basic troubleshooting steps.
Additional sections cover safety notices, battery charging and care, input methods, multimedia functions (camera, music, video, recorder), and various utility tools such as calculator, unit conversion, and health management. This manual is written in Chinese.
| Charging temperature range | -5 °C to +55 °C |
|---|---|
| Maximum SAR value | 0.274 W/kg |
In standby mode, long‑press the # key to toggle between meeting mode and standard mode.
Insert the charger into the phone’s charging port and plug it into a power source; the battery icon will show charging.
The maximum SAR value is 0.274 W/kg, complying with national standards.