Only certain models of iPhone 3GS originally sold in China have Wi-Fi (or WLAN) capability. The following chart identifies which iPhone 3GS models support Wi-Fi (WLAN):
||iPhone 3GS (16GB and 32GB)
|iPhone 3GS (8GB)
|Supports Wi-Fi (WLAN)
iPhone 3G models originally sold in China do not have Wi-Fi (WLAN) capability.