In this case, many users get an error message that states: “ The USB storage device is not connected“. On the other hand, it can be the PS4 system itself that causes this problem. Sometimes it’s the external hard drive that promotes this situation. In fact, there’re several reasons that cause PS4 external hard drive not recognized or showing up. And, depending on the cause of the problem, the solution varies from user to another. What you, as a PS4 user, need to know is that there’s no one reason that causes the PS4 external hard drive not working. This is just a pesky situation for which many users seek a permanent fix. It happens a lot to PS4 users that when they try to connect their external hard drive to PS4, the PS4 system won’t recognize it and the PS4 external HDD won’t work.
