Blown Inductor on WD My Passport

[silver60618]

Hi Guys, my WD My Passport drive powers on, then powers off. Ive taken out the motherboard and identified a blown Inductor. Im trying to recover my data only

Reading between leads show nothing. If I removed this Inductor, what would be a suitable replacement? am I correct that its a ferrite Inductor is to just filter noise?
Ive seen people just bridge them, any harm in replacing it with a differnt value Inductor?

Lastly am I correct in thinking there is no polarity on the smd component?

Thanks!

[mon2]

Hi.

1) correct that there is no polarity to this inductor / ferrite bead. It is essentially a coil of wire on a bobbin.

2) the purpose of this component is not 100% clear to me. It could be to filter out EMI noise or may be a part of a switching buck regulator which will demand for a replacement of this part. If it is only for EMI noise reduction then this part can be bridged to get the board to be operational.

3) Suggest, unless known otherwise with confidence, to seek out a replacement controller board (Aliexpress) and remove the same part off the donor board to place onto this board. If you know for sure that the bridging has worked for others, then short away. Measure the size of the part if you really want to replace with alternate ferrite beads from Digikey / Mouser / Arrow, etc.

4) Share more pics of this board which may allow someone to locate this mytery component.

[silver60618]

Thanks Mon! Searching for repacement was my next step, if I couldnt salvage something from the bone pile.

This is another board that matches part #, but looks like they changed the inductor type in fabrication

[mon2]

That looks good. Flux it well and remove it and swap with the blown device. Sometimes, IC vendors will create a low current switching power supply and this will require the presence of a ferrite bead / inductor. We have many designs where the silicon vendor has applied a 1v2 or 0v9 buck regulator. If you are 100% sure that others have bridged this component then you can proceed at your own risk to do the same. This implies that the part is used only for EMI filtering and not as a buck regulator.