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Repair and disassembly information for Sony WH-1000XM3 wireless noise-cancelling over-ear headphones.

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Left speaker driver is not working

Does anyone recommend disassembly of this device or can I send it back to Sony?

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I found them to be quite easy to take apart with a bit of filling with a credit card similar to the newer xm4 disassembly guide. Sony WH-1000XM4 Battery Replacement - iFixit Repair Guide

I unscrewed the outer cover to inspect the main board and found no visual damage.

However upon adjusting the cable inside the ear cup and removing the protective tape in the central terminal I was magically able to get the left hand side working.

during this time I had the headphones powered off with music playing from my laptop through AUX.

So if anyone else has this issue I recommend disassembly to have a fiddle around with the internal speaker cable.

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worked like a charm. saved my 16 hour flight just 30 min before going to the airport. was my last ditch effort.


it works for a moment, but the second i try to put it back together the cable moves again and it isn't working anymore. any suggestion which cables are the ones that need to be fiddled around? if i knew that i could probably secure them somehow


I've just placed a strap of duct tape over the wires in the left ear cup, which seems to fix the issue


Which cables do I need to move around I've tried to no avail please help


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I had the same issue. For me, placing some thick paper on the circuit board did the trick permanently.

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Yeah I think something like this would help stop the wires from shorting to the PCB.


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Hey there , I have the same issue: my left speaker isnt working anymore. In the past I could get it to work lightly hitting the outside of the left ear cup, but that does not work anymore. Connecting the cable does not change anything. I already opened the left side ear and had a play with the cables, to no avail. also there was no obvious damage visible. Anybody got an idea what I can do? Help appreciated :)

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Hey Mister P,

try to lock the cables on the board with duct tape, this worked for me.


If connecting the AUX cable does not fix the issue it sounds like the speaker may have a wiring issue. Might be worth inspecting the PCB.


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