1: Check whether there is networking software in the background of the mobile phone. It is suggested to end the background program, and press and hold the HOME key to enter the Task Manager-Active Application-and click Finish All.

2. When the synchronization function is not used, it is recommended to cancel account synchronization.

3. Some softwares such as Security Guard support the function of automatic startup after startup, so it is recommended to disable this function.

4. Uninstall the recently downloaded and installed third-party software: Settings-Application Manager-Download, and find the uninstall.

5. If the mobile data is still opened automatically, please back up the data (contacts, text messages, pictures, etc. ) in the mobile phone, and then restore the factory settings (Settings-Reset-Restore Factory Settings).