WD40NMZW-11GX6S1 MyPassport External Drive Broken

I have a western digital external hard drive of 4 Terabyte that is NOT working.

The main issue is that the drive is NOT fully recognized by the system:

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The disk spin and I am able to see some partition information, but I am not able to access the data and the led blink continuously.

Here below some pictures of the Hard drive:

What could be the problem? PCB defected?

I am not interested about the data on the drive, but to the drive instead and I would like to fix it and format it, in order to start to use it back again.

Could you help me and provide tips on what could I do or have to replace to fix it?

This is not the PCB problem.

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