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I bought the exact same strap but from a different seller

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I did a how to video on changing adapters featuring this strap (you can skip to about 2.10mins if you are not interested in the how to video) : https://youtu.be/xOt7b1kh0Y8
 
I ordered that one as well, bot the channel for the adapter pin is too small. How did you get it to work? I suppose I could pry it open.
 
Thanks! I will give it try. This one is much nicer than a similar one I purchased.

What tool did you use?

Simple, I used the same screw driver for the screws, poked it into the strap's channel and just wriggle it around to widen it up. Gotta use a little bit of force but after awhile the channel should widen up.
 
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