1: Automatic shutdown of WIFI and wireless network You can enter "Phone Settings - Wireless and Network - WLAN Settings", click the "Menu" button below the phone, select "Advanced" in the pop-up menu, and then select "Never" in the drop-down menu of "WLAN Hibernation Strategy", so that WLAN is always on and never sleeps. Selecting an appropriate WIFI Hibernation Strategy can help you get a better mobile experience. Answer 2: How to access the Internet with WIFI First, you need to have an available wireless network nearby, then enter the "Wireless and Network" menu of phone settings, tick "Open WLAN", and then enter "WLAN Settings" to search for available wireless networks.After searching, click Connect (some wireless networks are password protected, and you need to enter a password to connect). Answer 3: WIFI cannot connect to WLAN 1、 If the network has a key, make sure to obtain it first.2、 In addition, some networks have a filtering mechanism (for example, MAC address filtering). Please ensure that the filtering mechanism does not filter your phone.3、 Replace the network system. The current home wireless router generally supports 802.11b and 802.11g systems.The network card of the computer is generally supported.However, many mobile phones only support one of them. Please try restarting the router after changing the network system.It is also recommended not to select mixed mode Also, the wireless module of the mobile phone is broken. This is a hardware problem and needs to be repaired