1. When the memory of the mobile phone is insufficient, open Tencent's mobile phone housekeeper-cleaning up is accelerated-slimming the mobile phone can clean up the garbage cache of the mobile phone.

2. Clear some large files such as videos, music and pictures.

3. Click the notification bar icon and enter "Storage Space Usage". You can check the internal storage space at the bottom, including the total capacity and remaining capacity (available space), and you will find that there is not much remaining available space, which is the reason for the prompt.

4. Use Tencent Mobile Manager to accelerate the small rocket and close the background application process.