The Sony Ericsson U20i User Guide provides step‑by‑step instructions for setup, operation, and troubleshooting of the phone.
This guide walks you through the initial setup of the Sony Ericsson U20i, including assembly, SIM insertion, and first‑time startup. It also explains how to use core functions such as calls, messaging, internet access, and multimedia features.
Later sections cover advanced settings, connectivity options (Bluetooth, Wi‑Fi, USB), battery management, and troubleshooting tips to help you resolve common issues and maintain the device. This manual is written in Chinese.
| Battery standby time (GSM) | up to 380 hours |
|---|---|
| Battery standby time (UMTS) | up to 290 hours |
| Supported memory card | microSD |
| Headphone jack | 3.5 mm |
Connect the phone to a power outlet using the USB cable and power adapter; the phone can be used while charging.
Remove the battery cover, slide the SIM card (yellow contacts down) into the slot, then replace the cover.