I dropped the phone, and the screen broke
http://v.youku.com/v_show/id_XMTc3NDA5ND... (screen replacement only)
http://v.youku.com/v_show/id_XMTc4MzI4ND... (screen and plastic bracket replacement)
both Chinese guide.
Also followed iPhone5S guide to open the phone.(use suction cups!)
The screws are very easy to distinguish, and every part seemed to be quite easily replaceable.
Don't forget to use a hair drier, since it's got it quite everywhere.(even on the lower motherboard)
Also, if you're replacing the plastic bracket, you'll need a retractable utility knife.