A bright example is Seagate Company that released IDE disk with 1.5 TB storage capacity: speed 7200, and silent and fast in life… and after death. Modern Seagate storage devices have a number of design defects that lead to fast and imminent death. Two main malfunctions — spindle motor seizure and corrupted service information.

Corrupted service information

Service information gets corrupted because of inferior microcode written to the disk during its manufacture. The disk decides whether to work further on or not. It revolves, recalibrates…and that is it. It is not recognized in BIOS no matter how long you wait. At the same time the disk writes the following message to the technological port 000000СС: 00000xxxx.

Spindle seizure

Spindle seizure occurs because Seagate’s magnetic platters are the thickest and rotation axis is the same like in other drives. That is why if we take the higher model that has 4 platters and 8 heads, a small hit from the outside imminently leads to the thin axis being bent under the weight of heavy platters. The result — the axis cannot revolve not only with the help of motor but even if you manually try to move it with pliers.

The disk makes sound like “zzz-zzz-zzz” and doesn’t revolve. And since it doesn’t revolve, it doesn’t work at all.

Data recovery in this case is still possible.

Work sequence: move surfaces, dividers, HSA to the working hard drive assembly and read out the data. Sounds easy, yes, in practice - not at all.

It is strongly recommended not to open the drive to see and touch the insides.

Peculiarities — airflow divider in the latest disk models are metallic which can lead to platter damage in the event of hit and it also complicates the replacement of surfaces (previous models used to have plastic dividers).
Despite of all aforementioned problems we still can help you and recover all your data.