[newjersey]

The phone isn't quite the same once an unprofessional like me has opened it without guidance. For instance this nexus 5 on which I replaced a cracked LCD now has a little bit of give when I press the back. It used to feel completely solid before.

[erkkie]

Yeah, this is because there's a sealing tape that's supposed to go to the frame after opening.

Original frames usually have it attached to the frame, aftermarket ones don't. Some tape or glue needed to close the original one after opening.