The WiFi connection speed is slow. Troubleshooting method:
1, go to Settings -- more Settings -- Application management -- (top right corner \"more\" select \"Show system process\") -- find WLAN-- click storage, select clear data and cache, and then reconnect to WiFi try (some models enter Settings -- more Settings -- applications -- all -- Find WLAN);
2, check or reset the Settings of the wireless router, wired broadband or replace a new wireless router to try, (at the same time, the WiFi network speed and the distance from the router, broadband bandwidth and the number of connections are related);
3, Enter the Settings - system upgrade to detect whether the mobile phone upgrade is the latest version, if not, you can upgrade to the latest system and try to connect;
4, Enter the phone Settings -- more Settings -- backup and reset\/restore factory Settings -- restore all Settings to see; Restore All Settings This operation does not delete the data in the phone, but restores all the Settings in the phone, including the set wallpaper, unlock style, WiFi, default opening program, etc. In addition, you need to log in to the third-party software account on the phone again. If the above operations cannot be recovered, you can take your mobile phone to the customer service center for testing and processing.