[Galaxy S III Accessories] 3di:
I searched around for some better headphones for my galaxy S3 (GT-I9300), to unleash the full music experience the phone got. As I prefer a more powerful earphone I feel not as comfortable with the sound of the original ones, but I don’t wanted to lose the comfort of the Samsung Headset - Microphone and Remote control.

As you can see here, I changed the original Samsung headset cable to a pair of Sennheiser Headphones. In case you are interested in doing the same here is what I Did.

What i used:

A Pair of Samsung Headset Headphones, in my Case Samsung Galaxy S3 (GT-I9300)

A Pair of Headphones, as shown in the Pictures a Sennheiser CX 300-II

A Solder Station, a bit of soldering wire

A Tool called third Hand, or another little vice

Fine Pliers and a little slot screw driver

A Voltmeter

Just to ensure. I am not responsible for any injuries, damages and defects on the headphones, your mobile, other components or your health. The following hints worked for me and my equipment, yours may be different.

If you aren’t use in Voltmeter testing’s, soldering and fine mechanical works you shouldn’t do this.

First I dismounted the silicone Ear Adapters from all headphones. Then I used the pliers to demount the Samsung headphones. In My case I grabbed the stick where the Ear Adapter was on and ripped it off. I have no further use for them, so I broke its housing.

Inside the Cables are mounted on the speaker. I used the solder station, to liquefy the soldered cable connection from the speaker.

In next step I opened the cable knot and got the cable out of the Samsung housing.

Openig the Sennheiser Headphones:

I used my fingernails to get of the silver ring of the housing, maybe also a guitar plektron will do the same. In my case it worked when I turned it around while pressing my nails in.

Please see Picture 1

With the little slot screw driver I opened up the in key and slot position of the housing.

Please see Picture 2 and 3

I also used the solder station, to liquefy the soldered cable connection from the speaker.

I noted myself on which connection which colour of wire was. On the back side of the Sennheiser Speaker there was a red sign on one of the contacts.

I opened the knot and pulled out the cable. Then I inserted the white Samsung cable in the rubber bumper. I think its important to make sure inserting the right side of the Samsung cable into the right side of the new Earphone. To ensure better gliding I used a little of my wives hand cream on the cable.

When mounted the cable in the headphone, I fastened it again with a knot. I had to be carful, the cable isn’t as strong as it seems.

This is the pin configuration I measured on my headphones. As I heard that there is more than one pin configurations in different countries, please ensure what’s yours. So the wire connection I made may differ to the one which is the correct in your case.

Please see Picture 4

Soldering, I made,

Please see Picture 5

Right Headphone:

In my case I attached the red wire of the Samsung headset cable on the Sennheiser headphone at the solder position where the red dot was.

Left Headphone:

I attached the green wire of the Samsung headset cable on the Sennheiser headphone at the solder position where the red dot was.

Please see Picture 6

Reassembling should be no problem then.

Have fun with your modified headphones.

Please see Picture 7