If your PS4 is having trouble reading or writing to its external hard drive, there are a few things you can do to try and fix the problem. First, make sure that the hard drive is properly connected to the PS4 and that it is properly formatted. If the hard drive is not properly connected or if it is not formatted correctly, the PS4 may not be able to read or write to it. If this is the case, you will need to replace the hard drive. ..
