This is a user manual for A5503SA, which introduces the basic functions and usage methods of the mobile phone
This manual covers the basic operation of the au A5503SA mobile phone. It explains how to make and receive calls, manage the address book, use the camera, access EZweb and EZnaviWalk services, listen to FM radio, and input text. Safety and etiquette guidelines are also included, such as using Manner Mode to silence the ringer and avoiding phone use in prohibited areas.
Additional sections describe how to check power, reception, and battery status, protect yourself from malicious e‑mails and one‑ring calls, and configure various phone settings. Contact information for au Customer Service and recycling instructions are provided at the end of the document.