Apps on mobile phones all have caching technology. This can reduce the use of network traffic. However, with the passage of time, more and more files are cached, which greatly reduces the available space of the mobile phone. It is particularly easy to cause the phone to crash and need to clean up the cache. The steps of cleaning are as follows:

1. Open the housekeeper, click garbage cleaning in health optimization, and then select garbage scanning. Clean up immediately after scanning and press "Finish".

2. Uninstalling uncommon software can reduce the space occupied by the mobile phone.

3. Turn off the software when it is not needed. Background operation will not only use traffic, but also occupy the memory of the mobile phone when it is running.

4. Download application software as little as possible. Reduce the memory occupied by the mobile phone.