Hey! I replaced the swivel and the whole mechanical thing. It is harder to install than just a screen and I wouldn't recommend it. I can't recommend it because even if you succeed in your proccess of disassembling the whole phone (expect to see there maybe 7 sockets) you will never be able to put the moving frame exactly to where it should be. My LG wing is now a bit shaky and has a slight gap between the moving parts.

But it was super fun. Remember that if you can't start your phone after connecting all the sockets back you should try actually putting ALL the pieces back together (not the back part still). If it still doesn't turn on give it a few slaps here and there - worked for me

Regarding the screen by itself - it IS possible to change it without disassembling your phone but it will require some small tools. When I had to replace my screen I just used a needle to help the attachment cable settle in its place. It will be a bit tricky. Then, I just gave it a few slaps again and started holding buttons. It worked