If you guys are talking about iPhones, then this one is extremely simple.

Still, have to watch your six. Here, it is the video cable. Go ahead, undetatch the screen.

You can flip the screen over to the keyboard side. It make everything easier and will not damage anything.

Then is the plastic scaffolding. I met a tiny little amount of double sided tape in my device, but getting it off is simple task, just use your common sense on this.

Go ahead, get this screw off.