Cool 80 17 mobile phone is equipped with sd card, but the display memory is still insufficient to receive short messages. What should I do?

This is the phone running memory RAM is insufficient.

Mobile phone memory is generally divided into running memory RAM (solidified on the main board of the mobile phone and cannot be expanded), body storage memory ROM and extended memory SD card. By default, the mobile phone is stored separately in the order of running memory and body memory, but it needs to be manually set to be stored on the SD card, which is why there is still room in the mobile phone memory, but it still indicates that the memory is insufficient. When the mobile phone is used for a long time, especially watching videos online, many caches will be generated, and some caches cannot disappear automatically. After a long time, it will form a lot of garbage; Too much software installation will also take up a lot of memory, resulting in insufficient memory in mobile phones. The only solution is to clean it up:

(1) Call up the folder of storage media and transfer photos and videos to SD card or computer;

(2) clear the memory. Download and install mobile phone management software, such as cheetah cleaner or 9 1 mobile assistant, to further clean up cache, system and uninstall residues;

(3) If the software is installed too much, it is necessary to uninstall and clean up the uncommon software to release the memory. For the software that takes up too much memory, you can release the memory space through 9 1 mobile assistant or cheetah cleaner "move the software to SD card";

(4) Set the mobile phone browser, and change the download location to SD card;

(5) Enter the photographing state, enter the camera settings in the photographing interface, and set the photo storage location as "SD card".

? Of course, the most thorough cleaning method is to make a backup of the mobile phone, reset the mobile phone and restore the factory settings.

I hope I can help you, and I hope to adopt it!