I Fried My Book :'( help me please

WD External Drives External Drives for PC
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I used this mode to test the connectivity between the diodes and the resistors

There is no sound on the two resistors but there is a beeping sound on the two diodes

So i assumed there is no electrical current runing through the resistors then

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Just add to this that I have exactly the same problem - if anyone could help me out -

I removed D4 and the drive came to life but doing spin-click spin-click.

This is my dread detailing the issue

  • Is it worth me trying other things with this PCB (all I’ve done is the D4 removal),  or should I try a new PCB or abandon it altogether?
    Thank you all in advance :slight_smile:
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LanceKnight, you appear to be confusing the diodes and resistors. Resistors R67 and R64 should both measure 0 ohms, in which case they should make a continuity sound. That’s what you’ve indicated in the photo.

Diodes D3 and D4 should measure about 600 in one direction, and open in the other, if you test them out of circuit.

ISTM that your board has other problems. :frowning:

However, the good news is that there is a serial flash chip at location U12. If you replace the board, then the Winbond chip will need to be transferred to the donor. If you had been unlucky, the contents of U12 could have been internal to the Marvell MCU (big “M”), in which case you would have had no choice but professional data recovery.

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Then i guess this is the solution . My PCB is not currently listed on the website you told me so i’m gonna wait until they have it :smiley:

Thank you so much for helping me out :smiley: