This document provides a user guide for BlackBerry Messenger, including basic information, requirements, contact management, chat features, group features, and backup and restore functions.
This guide provides step‑by‑step instructions for basic functions such as changing your display picture, updating your status, and using BlackBerry® Groups. It also covers requirements, sound settings, activity updates, and how to search contacts.
Additional sections describe how to back up and restore your contact list, troubleshoot common issues, and understand legal and IT policy information. The manual is intended for end users of BlackBerry devices running the Messenger app version 5.0. This manual is written in Chinese.
| Minimum free application memory | 3 MB |
|---|---|
| Required device software | BlackBerry® Device Software 4.5 or later |
| Wireless data plan required | Yes |
Use BlackBerry® Desktop Manager to create a backup file of your contact list, then store the file on your device, media card, or computer.
You need at least 3 MB of free application memory, BlackBerry® Device Software 4.5 or later, and a wireless data plan.