The second method: find the application management program of the mobile phone, and then clean the data of the mobile phone. In this program, you can find many mobile phone programs that you don't often use, and then uninstall the found mobile phone programs that you don't often use. Although this cleaning method is thorough, it still needs to be cleaned one by one, which will take more time.
The third method: find out the factory settings of the mobile phone. First back up the important files in the mobile phone, then find the factory recovery system of the mobile phone through the mobile phone settings, and then set the factory recovery settings of the mobile phone. After replying, the most important thing is to delete all files outside the mobile phone system. If you choose to do this, you can install the corresponding mobile assistant, connect the mobile phone to the PC port, and then open the file manager through the computer.
The fourth method: format the phone. Compared with the former method, this method is more thorough Just like the last one, back up the important files in your mobile phone first. Then turn it off. In the off state, press and hold the power-on key and the volume key. Some mobile phones may also press the power button or add the volume+button for a long time, and the refresh mode will be played. After entering, press the volume button to clear the relevant data. After clearing, choose to restart the phone. In this case, the refresh is over!
If a friend still doesn't understand the above methods, especially the third and fourth methods, you can go to the mobile phone shop to brush the machine. Some mobile phone shops still don't need any fees, but Bian Xiao still reminds everyone that you must back up the files you think are important before you refresh your phone. If you don't back up, you won't find these important files in the future.