The main reason for the lack of memory is that when downloading software, the cached junk files and browsing history are not cleaned up in time, so the mobile phone will easily get stuck and crash because of the lack of memory, and the cache needs to be cleaned up. You can try Tencent Mobile Manager, and the cleaning steps are as follows:

1. Open Tencent Mobile Manager, click garbage cleaning in health optimization, and then select garbage scanning. Just clean up immediately after the scan is completed 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.