If your ppf gets scratched, you will need to replace it. The best way to avoid this is to be careful with your ppf. You should handle it with care and avoid using sharp objects on it. If you do accidentally scratch your ppf, you can try to repair it yourself. There are a few methods you can try, but keep in mind that they might not work. If the scratch is deep, you will probably need to replace the ppf. Replacing the ppf is not a difficult task, but it is important to do it correctly. If you do not replace the ppf correctly, you may damage your phone. Therefore, it is best to consult a professional if you are not sure how to replace the ppf.