My S4 had a lot of scratches on the center housing and the USB port / headphone jack came off the paint and led the "white" including to the fore. Very ugly.
Therefore, I decided to replace the center housing because that is very easy to deal with alone. All you need is a very small screwdriver and a pointed non-metallic object to the center housing the display to solve. (Without causing scratches)
The conversion took me 45 minutes. Largely because of that because I have very long to ever find such a small screwdriver.
I am fully satisfied with the product. While the renovation is still slides on the center edge of the case, so you do not already scratched during which the new edge.
The volume buttons still fit great, as before. No more scratches and S4 again looks almost like new. The overlying very small silver frame you can not change, unfortunately, because it is connected to the display and thus the whole unit should be replaced (costs 180). So it does not look perfectly new, but for 12 I find the result very, very satisfying.
Would recommend to anyone who already owns his S4 longer and various wear has, as I had.
