How To Fix External Hard Drive Ps 4 Beeping. Download and run this free tool, then right-click the external and click "Initialize Disk". Make sure the storage device is FAT or exFAT formatted.
Here's how to reformat the external drive: Connect the External drive to PC or Mac. But you might be able to return the enclosure at least. Your Playstation will then surely recognize it!
Mac: Launch Disk Utility from the Applications > Utilities folder.
Wait for the console to restart as normal.
Try to format the HDD again. Select your external hard drive from the list of drives. This usually happens because the external HDD is malfunctioning physically or undergoes some serious bad sectors that have to be fixed.