Nokia E90 is a wireless device with various features and characteristics, such as safe booting, traffic safety, waterproofing, and connecting to other devices. Users need to follow certain safety precautions when using this device and be aware of maintenance and accessory usage. Additionally, this device supports network services and office applications, requiring users to apply for the necessary network services as per their needs.
This manual covers safety precautions, proper handling, and legal requirements for using the Nokia E90 Communicator. It explains how to avoid hazards such as water exposure, improper charging, and usage while driving, and notes that only qualified technicians should perform repairs.
The document also describes the device’s basic functions, network support, standby modes, and emergency call procedures, along with information on compatible accessories like DC‑4 and AC‑4 chargers. Detailed navigation instructions for menus and input methods are provided throughout. This manual is written in Chinese.
| Supported network bands | GSM 850/900/1800/1900, WCDMA 2100 |
|---|---|
| Compatible charger types | DC‑4, AC‑4 |
| Model number | Nokia E90-1 |
Only DC‑4 and AC‑4 chargers are approved; using other charger models may void the warranty or cause hazards.