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What are the conditions of mobile hard disk damage

Mobile hard disk damage includes damage to the head assembly, damage to the control circuit, comprehensive damage, and physical damage to the sector generally referred to as physical bad sectors .
Head damage
Mainly refers to the damage of a part of the magnetic head component in the damage repair of the mobile hard disk, causing some or all of the magnetic heads to be unable to read and write normally. There are many ways and possibilities for damage to the head assembly, including dirty heads, head wear, head cantilever deformation, magnetic coil damage, displacement, and the like.
Circuit damage
It refers to the disconnection or short circuit of a part of the electronic circuit board damaged by the mobile hard disk, or the damage of some electrical components or IC chips, etc., resulting in damage to the mobile hard disk. After the power is turned on, the disk cannot be rotated normally, or after the rotation. The head cannot be searched correctly.
Comprehensive damage
Mainly refers to the problems caused by the damage repair of the mobile hard disk due to some minor changes. Some are mobile hard disk damage repairs due to heat or other relationship caused by the chip aging; some are mobile hard disk damage repair after the shock, the outer casing or disk surface or motor spindle produces a slight change or displacement
Physical damage
Refers to physical damage to the disk surface due to collision, head friction or other reasons, such as scratches, magnetic loss, etc. Soft damage includes track servo information errors, system information area errors, and sector logic errors generally referred to as logical bad sectors .

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