It can be replaced, but it should be opened in a dust-free environment.This price is quite high I might as well buy a new one.The recovery price of important data is also high.
I don't know how you use the hard disk to play movies. I only know that when the hard disk is installed on the computer, sometimes the power supply is not enough, the head will return or stop. For a long time, the hard disk will break down quickly. Let me say a simple thing. I used to install three hard disks and one optical drive. The power supply must not be able to carry it. But I just carried 'GHOST' when the power supply was not enough, the power supply would not be able to carry a snap.~~At first, nothing happened~After a while, the power supply would not be able to carry itNow these three hard disks read much slower than before~Why do you say so~Let's take an example~In the past, copying a movie of about 300M from one partition to another was only ten seconds~Now the longest time is about one minute~~You'd better not use the hard disk like this
The read/write unit of flash disk is page, the erase unit is block, and the read/write unit of hard disk is sector.The two principles are completely different. In order to be compatible with the disk operation of existing operating systems and software (it is impossible to develop disk operation specifications specifically for flash memory storage devices), the sectors, cylinders, and tracks you see in SSDs are all simulated through firmware.
Replace the magnetic head. At present, China does not have this calculation. Otherwise, we will find out the domestic hard disk.If the hard disk makes a noise, there is a physical evil. It is recommended to transfer the important data and throw it into the garbage can to avoid losing the data
As long as the computer is powered down, the head of the mechanical hard disk will not automatically reset (how to reset when the computer is powered down?), but will hit the disk.The data of the light ones is damaged, and the physical bad blocks appear in the heavy ones.
