Changhong M558 displays overlapping red circle messages in the lower right corner of the screen.

There are two possibilities. One is that the information is full, so it is suggested to delete some. The other is that there are multimedia messages that are not downloaded. If the memory of mobile phone is small, you can delete them after reading, otherwise you won't be able to save a lot. If the icon flashes, it is probably the latter. Delete it and download it.