Why can't I get a text message on my mobile phone saying that com.android.contacts has stopped running?

Android phones will display a warning prompt when the remaining memory space is less than 20MB, which cannot be eliminated unless the software is deleted to release the memory space to make it larger than the threshold.

This hint of insufficient memory will delay things if it is not eliminated in time.

The consequences are:

1 will cause you to send SMS and MMS, but you won't receive them. To put it bluntly, you can't receive short messages and multimedia messages sent by others.

2 will cause Gmail calendar contacts to stop syncing. In other words, you can't receive gmail notifications and reminders, and you can't manually brush them out. You can't see the letters unless you log in to the web version.

All software with automatic timing update can't be used. For example, a twitter client that is set to update every 3 minutes will not update automatically.

If you have encountered the above phenomenon, you may wish to see if your mobile phone prompts you that you are out of memory.