Motorola mobile phone xt928 turns on the black screen and it will be normal in a few minutes. What is the reason?

The system crashed due to insufficient memory.

Define a concept first. The memory we usually refer to refers to the system cache, that is, the "memory" seen by the "display power" software. This cache is usually relatively small, less than 65,438+0 megabytes. That is, the mobile phone is stored, the memory card is stored, and the data cache area used when the program of the machine's own system runs. It plays a role in storing mobile phones, storing memory cards, and exchanging data between the machine's own system and the machine's cpu. This bridge is often the chief culprit of plane crash and death, and the usual plane crash and death are more or less related to it. The memory we will talk about in the future is this "memory" instead of "mobile phone storage". Attention, everyone! Mobile phone storage is equivalent to our computer hard disk. In a mobile phone, like memory card storage, it is just a storage device, not a memory (an interesting phenomenon in a mobile phone is that we call our own storage part machine memory, which really misleads many people). Ok, we understand what memory is, and then let's talk about why the lack of storage space in the mobile phone will lead to a crash.

Let's take an example first: Remember the old computers in earlier years! Usually their hard drives are not very big. When we are crazy about storing things in it, and the hard disk is almost full but not full (for example, there are more than 100 megabytes of space left), do computers often appear? Yes, that's the blue screen. Why the blue screen? Isn't there still 100 megabytes available? This should start from the principle of computer data storage: no matter what program the computer is running, it is necessary to read the relevant data used by this program from the hard disk and store it in the memory, and then the cpu will take out the data used for its calculation from the memory (this also has to go through the "bridge" of the first-level and second-level caches that the cpu comes with). The first-level and second-level cache plays the same role between memory stick and cpu as the memory stick does between hard disk and cpu, which speeds up data exchange. When reading from the cpu, you should know that the cpu reads data from the memory stick much faster than directly reading data from the hard disk, which greatly improves the speed of program execution. After the calculation, the cpu will execute the calculation results. For example, if the calculation result is to execute an instruction: open the folder, then the computer will display the contents of the folder. For example, when we input a document, the cpu of the computer calculates what text we input by tapping the keyboard, so it puts the text we input there, that is, in the memory, until we give it a command to "save" the text we input, it will transfer the content we input from the memory stick to the hard disk. However, the fact is that the computer can run because of the calculation of cpu. All our actions, even the display on the monitor, including moving the mouse, have to be calculated and commanded by the cpu, and the complicated and huge intermediate results of these calculations and commands are often temporarily stored in the memory stick. Only when the cpu thinks that the memory can't be loaded, or we give the computer a save command, will it be transferred to the hard disk. During this process, the hard disk will always be stored. At this time, the cpu has to spare energy to check the storage location on the hard disk from time to time, so that the next storage can be connected from this location. When our hard disk is almost full, the remaining space often exists in the form of fragments, which increases the difficulty for cpu to detect and store it on the hard disk at any time. In addition, the previous cpu was not very fast and the memory bank was not very large, so this dump should be carried out frequently. This large amount of data exchange causes the cpu to run wildly, which may lead to a crash. This is why the computer often appears blue screen or crashes when the remaining space is not much.

Well, talking so much about computers is just to attract attention to our mobile phones. As mentioned earlier, the storage in the mobile phone and the storage in the memory card are all storage devices in the mobile phone, not real "memory", but equivalent to the hard disk in the computer. The real memory is "memory" with less than 1 megabyte space (which we can see by software "displaying power" or files). Speaking of this, I understand why the mobile phone is more likely to crash when the storage space is insufficient. There is no need to say more about the similarities between the smart phone system and the computer windows system.

Everyone uses OxiosHibernat, a software that releases memory. Have you noticed a very interesting phenomenon? That is, under any circumstances, no matter how slow your system is, no matter what program you used before releasing the memory, as long as you click OxiosHibernat to release the memory, the released memory will never exceed 888k K. That's right, because the "storage memory" itself is only 888k, how can it release more than it? Our famous software for releasing memory is equivalent to the memory in the computer and the memory in the mobile phone, not the memory and memory card in the mobile phone.