wd 2.5" spins then stops

[emkanapot]

Hi,

I have WD5000BEVT 2.5". I connect to PC. It spins up, clicks 1 time, stops then back to spin, clicks 3 times, stop. It repeats 3 rounds. On 4th round, it spins, clicks 1 time, stops then back to spin, clicks 4 times, stops. On 5th round onwards, it spins, clicks 4 times, stops. PC BIOS does not detect the drive. On imager, it spins, clicks 1 time, stop then back to spin, clicks 3 times, stops then enter DRDY state. After doing rescan, it spins, clicks 1 time, stop then back to spin, clicks 4 times, stops. It repeats 3 rounds then back to BSY state. Is it mechanical problem or firmware problem? and can it be fixed by serial terminal with usb to ttl adapter?

Thanks.

[jaclaz]

The disk cannot read the part of the firmware on disk.

Normally this indicates mechanical issue that only can be solved opening the disk and transplanting heads.

Nothing DIY, and definitely nothing that can be done with a simple USB to TTL adapter.

It is also possible that something in the firmware (address table of sectors on disk) is gone beserk but it is unlikely.

jaclaz