This is the user manual for ZTE D300 mobile phone, which introduces the basic functions, usage methods and precautions.
This user manual explains how to safely use the ZTE‑C D300 mobile phone. It covers basic knowledge, safety warnings, installation of the UIM card, battery charging, power on/off, and detailed descriptions of core functions such as calls, messaging, navigation, and multimedia applications.
Additional sections guide you through configuring display, sound, and network settings, using advanced features like U‑disk mode and name‑card recognition, and provide simple troubleshooting tips. The document also includes regulatory information and RoHS compliance details. This manual is written in Chinese.
It may be because the press time is too short or the battery charge is too low; charge the battery and try again.
Enter the current PIN code, or if you have changed it, enter the new PIN. You can also disable PIN protection in the security settings.
Insert a storage card, connect the phone to a computer with a data cable, then select the U‑disk mode option to make the phone appear as a removable drive.