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Sennheiser HSL10 Headset Lifter - BW900 compatible Questions & Answers
Red light flashing
The lifter is a piece of junk. The red light means its time to get another. If the lifter will not lift the handset then it's time to get another - the best thing is do not get one to start!
I have the Sennheiser HMD 280 PRO Professional
You have to wire the plug to eliminate the voltage sent by the sound card. I can't remember if it's the tip or the sleeve, so you'll have to verify with a volt meter. Use a 3 position plug to solder to the mic wires, just don't connect the wires of the mic to the one that has voltage on it
Sennheiser MM100 bluetooth not working
Yes I had the same problem.
Under some circumstances the MM100 freezes (didn't figure out when just yet).
It's a software issue inside.
Solution: open left speaker (the side with the charge connector and hence the battery).
Discharge the battery (or just short circuit for half a second) and it works again.
Sennheiser should built a reset button on these things.
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