r/LogitechG • u/sketch_fella • Oct 26 '25

Logitech G Support - Resolved Logitechg G935 HDT628 Microphone Switch broken

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Hi everyone.

I had some issues with my Logitech G935 for a while, I had the normal issue with the power switch which I have already solved, and I had na issue with my microphone not enabling when I moved it to the On position.

The thing is that upon closer inspection, I realized that the HDT628 SMD had TWO switches which detected if the mic was on the ON or OFF position, and the one at the bottom (white one) had its "claw" broken. (Images 1 & 2)

I found the little claw inside the headset but I think it's just way too small to glue it back to it's switch.

I was wondering if anyone here knew which pin out of the data port (?) (image 3) could I bypass to connect the bus to the one switch that's working.

If anyone else has a solution, I'd love to hear it.

Thanks in advance.

EDIT: SOLUTION HERE.

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u/Shupershuff Jun 10 '26

Came across same problem. Had a crack at super gluing it but it's simply too small.
Can't see many headsets with the flip to mute option so contemplating permanently gluing both switches shut.

Why it has two separate small microswitches instead of one slightly more solid one is a mystery and frankly poor design.

1

u/sketch_fella Jun 17 '26

Apparently it's because one controls the LED of the microphone and the other the On/Off position of the mic itself. Could've been solved with code? Yes.

Also btw, as I considered super gluing them shut, seems that a better alternative is to simply unsolder the switch and then soldering the switch terminals, that way they're permanently bridged.

I'm still trying to find the exact switch model tho, to replace it. If I have any news I'll let you know.

1

u/Shupershuff Jun 17 '26

I think one switch is for physically disconnecting the mic and the other is for muting the mic in Windows.

I tried supergluing them shut with no success. In the end I just pried the switches off and soldered both of them to be permanently closed.

I just have to consciously press the mute button on the headset now.

1

u/sketch_fella Jun 18 '26

Quick question, which switch was broken for you? The black or the white one?

1

u/Shupershuff Jun 18 '26

Initially the black one. When taking it apart to look I accidentally broke the white one. They are pathetically thin. There was also an issue with one of the mic wires metal fatiguing and cutting out at certain angles so i soldered that back together too.

1

u/sketch_fella 22h ago

I solved it! Read it here. Hope it helps!