My k750i earpiece mod

Ah, found my soldering iron from poly days. Used it to solder some fans earlier last week. My pirated 3.5mm audio adaptor is problematic. Listen halfway, the catch will ease itself from the phone, breaking the connection and there goes my music. Well, I don’t really use the earpiece that comes with k750i. So I decided to modify it. Add a 3.5mm female stereo audio jack to it. Took the female jack from the pirated adaptor, took the wires from the original earpiece, after some desoldering, soldering, desoldering and soldering. Finally it is done! I dunno why the female adaptor come with so many wires, red, green, blue, blue/copper and copper. Had a hard time figuring out which 3 wires to use, 1 ground and 1 each for left and right. No multimeter so trial and error!

Ah, proud of myself. Going to enjoy music on my earpiece! 😀