Ok, here we go. I spent about 3 hours on this issue and sacrificed some functionality on my headphones to solve the low volume music problem.
Clearly some people have had success with less drastic measures so I would suggest trying the following steps in order before dismantling
- Attempt to dry out the headphones in case moisture is the culprit.
- Call Motorola. If you are still covered under their 1 year warranty, make it their problem. You get a new set and all is gravy (at least until the new ones poop out). Repeat as necessary.
- Attempt a reset of the headset. This was mention in solution 8 and could well work for you.
- Try to override the volume up (explained in solution 6)
- If none of this works, try the steps outlined in solution 10. In my experience, there was gluey goop everywhere! This might be affecting the connections and causing the low volume.
- If none of this works (as was my case), proceed to disassemble the headset in the following manner...
I found that after disassembling
, and creating a manual connection between the contacts for the volume + button, the volume would still remain at minimum. Therefore, I believe that instead of the moisture killing the volume + switch, the volume - contacts have corroded in the closed position. This solution will remove the ability to use the volume - button. But, you will still maintain you ability to make and answer calls with the phone button if it is currently operational.
- Slowly peel back the red silicone covering over the back of the headset near the power switch. Note: the flap covering the mini USB plug will release once the casing has been opened.
- Reveal the four #0 phillips screws on the inside surface of the headset body. Remove them and set aside.
- Using your nail, or a flat blunt object (like a butter knife), pry open the casing starting near the mini USB port.
- Once it all is opened up into two casing pieces and exposing the circuit board, find the 6 pin JST connector for the left side of the headset. The colors are coded as follows: black for ground, orange for volume -, red for phone button, yellow (almost gold) for volume +, and the last two (I believe they were green and blue) are for the speaker.
- Cut the orange wire (if black is pin 1, orange would be pin 2). This will prevent minimum volume problems in the future.
- Power on the device without touching any open contacts on the circuit board.
- Connect the S9 to your phone or whatever you play music through.
- While the music is playing, use a strand of electrical wire or similar conductive material to briefly make contact between the black and yellow terminals on the back of the JST connector. This will replicate the volume + button allowing you to adjust the volume up. I set my volume to about 80-90%. If you set it too high, you will have to make brief contact between the black and orange wire to adjust the volume down.
- Close the headset casing and replace the screws.
- Glue the red silicone padding down.
Wrote this will jammin' to Chant a Psalm by Steel Pulse. Good luck bitches...