1. The "memory" of a mobile phone usually refers to "running memory" and "non-running memory". The "running memory" of a mobile phone is equivalent to the memory of a computer, that is, RAM. The "non-running memory" of a mobile phone is also commonly represented by ROM, which is equivalent to the hard disk of a computer. As a supplement to the body storage, the extended memory SD card is equivalent to adding a hard disk to the computer, and cannot be used as an extension of the running memory RAM. The larger the RAM, the smoother it is for the phone to open and run multiple programs. The larger the storage memory ROM of the mobile phone body, just like the larger the hard disk, it can store more data, but it can't improve the running speed. For example, Apple 6 has only 16GB, 64GB or 128GB of RAM.

2. Mobile phone manufacturers usually refer to "running memory" and "storage memory" as "memory". The "insufficient memory" prompted by the mobile phone does not specify whether it is "running memory" (RAM) or "storage memory" (ROM). In fact, it is often insufficient running memory RAM. So many people find that mobile phones still have a lot of memory, and this part actually stores memory ROM.

3. Using mobile phones for a long time, especially WeChat, q q and watching videos online, will generate many caches, 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) Download and install mobile phone management software, such as Cheetah Cleanup Master or 9 1 Mobile Assistant, to further clean up cache, system and uninstall residues;

(2) Unused software needs to be uninstalled and cleaned to release memory. You can release memory space by "moving software to SD card" through 9 1 mobile assistant or cheetah cleaner;

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

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

If the above methods are not enough, it is strongly recommended that you make a backup of your mobile phone, reset your mobile phone and restore the factory settings. This is the most thorough and effective method.