No idea. Maybe something is bound up?

Well I too replaced this and I too still cannot hear from the earpiece very well. What else could it be?

Good deal!

And someone does make a replacement piece now! Masica, thank you for the tip! Look on eBay for “DS-560 shaft” and it should come up right away from seller g_loc.

Masica, thank you for the tip! I looked on eBay for “DS-560 shaft” and it came up right away from seller g_loc.

note, ID = inner diameter

lszablya recommended a different twist: "I used double wall heat shrink tubing. Looks like it sucked in around the prongs just fine."

Alright! Way to go. Thank you for posting your resolution, too.

IIRC, the piece with the clip on it has a tab so it will only go back into the roller area if it's turned a particular way. Either turn it or the rollers and it will work. See step 11 for what I mean.

Nice, Saul. I thought it might be possible that way. That would save a lot of time

I'm so glad this was worth the time it took to document it!

It looks like there are a number of similar models that this repair would be good for:

The GT-S50 isn't outwardly identical like the rest, but the DS-510 and the DS-760 and DS-860 at least look outwardly similar.