Replacing LCD Screen that got cracked

So I have two FX991ES’es (One is actually a better version, they look the same, same shell, same everything just different functions one is a slightly better version (115ES PLUS) still there the same basicly.

So my 115ES display is broken and I would like to try to fix it before throwing it away and buying a new one, I have the 991ES display which from opening I see they have the same ribbon and everything. I don’t care about breaking anything as I’m throwing it away anyways and I don’t have any expierence with stuff like this.

How would one go in disconnecting a ribbon from the board and reconnecting it? Does anyone have an idea how the mechanism locking it in functions? I would guess it’s some kind of glue or adheseve, but I’m just shooting in the dark here.

Thank’s.

TL;DR

I have two screens I want to replace my FX115ES PLUS Screen with my FX991ES Plus screen, but confused about how to disconnect/reconnect the ribbon cables.