There are still a few g's in the phone memory. Why is the phone full of memory?

You may confuse the phone memory with the phone storage space. The function of memory is to temporarily store the operation data in CPU and the data exchanged with external memory such as hard disk. As long as the power is cut off, all the information in the memory will be lost. Just like writing a word document on a computer. When you didn't save it, everything in this word document was temporarily stored in memory. At this time, if you suddenly turn off the power, or turn it off and turn it on again, these contents will be lost. Only after saving will the contents of word be saved in the storage space.

Mobile phone storage space is a real physical storage medium, such as tf card, sd card, mobile hard disk, U disk, etc. , both called external storage or extensible storage. Nowadays, smartphones generally have built-in storage space, such as 32G, 64G and 256G. , it can be Baidu.

Your problem now may be one of the following situations:

1, the built-in storage space of the mobile phone is almost full, but you said that you still have a few G's, so this is ruled out. Keep reading.

2. The storage space of your mobile phone is divided into two or more types: the storage space of the mobile phone system and the USB flash drive (there may be other names, but the meaning is the same, both of which are to expand the storage space of the mobile phone). (This is because in order to ensure the stable operation of the system, mobile phone manufacturers will set aside a little space to store the files of the operating system, so as to prevent users from accidentally deleting or doing other unsafe operations and damaging the system. If this is the case, it may be that you put a lot of software (app) in the storage space of the mobile phone system, but the storage space of the mobile phone system is not very large, so your mobile phone system space is full. Although there are a few G's left in the USB flash drive, the mobile phone will still prompt you that the system space is insufficient. The solution is to transfer the apps installed in the system space to the USB flash drive of the mobile phone, and then clean up the cache of each app to free up the system space as much as possible. In addition, generally such a mobile phone will have the setting item of "app default installation location". You can set the default installation location of the app as the mobile phone USB flash drive.