Chosen Solution

Hello! I’m trying to fix an old iPhone 5s! However my flex port for the volume/power buttons isn’t sticking into the pins it’s meant to. Some times I lightly push down and it feels like/sounds like it clicks in but I take my finger of and it pops back off I’m wondering if I damaged/bent the pins on the motherboard because I can’t get it to stick down any help or answers available?

It’s a small delicate connector and it’s made of plastic material, if it gets pressured in the wrong position the plastic may deform, it wouldn’t be the first I’ve seen on 5S and SE. I would suggest to check carefully with a magnifier and a good light source that the shape is symmetric and sharp. You may try to gently carve it back in shape with a blade knife to allow the flex to sit in place. Check also the flex pins have not been damaged by mistake.