I updated to 4.3 from the zip a while back and since then whenever I receive a text message, it just vibrates and doesn't actually wake the screen up like it previously did. I've searched and S3's on 4.3 on other carriers have the option in the settings while the Sprint version does not. Is there anything that will bring this function back? Also, does anyone recommend any decent lock screen replacements without root, or do you have to be on root for that? Thank you.