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I'm not 100% sure what you are referring to. Do you mean for your Gear VR? The piece that connects the headset to your phone? It's designed to come on and off, there are 2 of them that came with the headset, one for micro USB, and one for USB C. It should snap right back in.
https://www.vrheads.com/how-find-usb...r-your-gear-vr