This document is the user manual of LG U400C mobile phone
This manual covers the essential information for using the LG U400C mobile phone, including safety precautions, warranty terms, and step‑by‑step instructions for charging, inserting the USIM, and configuring the device. It also explains the PIN code requirements and how to send SMS/MMS messages.
Additional sections include a Declaration of Conformity and contact details for authorized service centers, helping users understand regulatory compliance and where to obtain support during the warranty period. This manual is written in Chinese.