xdsc magazines

Hello, I have a few of these magazines, but for the life of me I cannot get the base plates off of any of them, even when pressing the button down the way I do on other magazines. Does anyone have any tips or videos to show how to do this? Thank you!

My edc has been my trusty old XD Mod2 Subcompact 9mm. But that new Hellcat RDP with all its bells & whistles has my attention. It's basically everything my XD-SC wanted to be. I've got a bag full of XD 9mm magazines and was wondering if anyone already knew whether or not they're compatible with...