Step 4: Turn on the PS4 so that it runs without an external hard drive. Step 2: Now switch off the electricity for a minute. In this scenario, you need to perform the following steps first: If the issue is with your PS4, then the external derive will get recognized in other systems. You can confirm that you need a replacement if it didn't show up on other devices too. To understand it, simply connect it to a PC or another PS4. In this case, initially, you need to confirm that it hasn't been defective. Scenario 2: A working PS4 suddenly stops reading external hard drives It is advisable to use another USB port which may act as a resolution, sometimes.If yes, update the same to its latest version and recheck the issue whether it is fixed or not. Last but not least, you need to check whether you are running the older version of PS4 system software.PS4 will only recognize one external storage drive at a time You need to check whether the drive was previously formatted for external storage.You need to cross-check whether the external HDD is connected directly to the PS4 via one of its USB ports which apply to hub USB external hard drives also.Cross verify that your external hard drive is compatible with PS4 standards.As the PS4 system doesn't recognize wireless external hard drives, make sure PS4 external hard drive has a wired connection.

If it is working there perfectly fine, check the other point(s) and make sure whether it needed to be replaced at this point itself. Connect your External HDD to your PC and check for any damages.

2tb internal hard drive ps4