Ring apparently won't replace their product or even send a replacement button when they know their buttons break. Lots of forum posts online about this. I got my Ring Pro on a Black Friday special a couple of years before and it was out of warranty coverage. I was happy to just replace the button but they don't sell them as replacement parts, they want you to buy a whole new unit. The unit works so I disassembled it and measured the old broken button and re-created a similar one in Fusion 360. A couple of quick iterations later and it was re-assembled and working again but with a much sturdier replacement.