Uncharted 4 has been patched, removing the glitch for these trophies. No worries. There is a way around it. First thing: BACKUP YOUR DATA!. Don't delete any game files without backing up, just in case. Otherwise, delete at your own risk. This exploit is used to obtain the Crushing difficulty trophy, and all preceding difficulty trophies, as well as the Speedrun trophy in a matter of minutes. Granted, you have to have completed the game at least on Explorer first. You DO NOT have to delete and re-download the digital copy like I did in the video. I only mean to show you that if you download the digital copy from scratch, it will now automatically update the version for you. You NEED the hard disc to perform the exploit in the video..