Make sure the usb storage device is formatted to the supported file system fat or exfat and is not partitioned.
Ps4 usb storage device not connected.
If your usb drive is plugged into ps4 but it s shown as not connected or ps4 keeps saying usb storage device not connected you should consider the compatibility between them.
Ensure the usb storage device is properly inserted in the ps4 and then wait one minute before trying to access the device again.
If the drive is lighting up like theres power going to it but ps4 is not recognising the drive is connected i can almost guarantee your drive and everything on it is fine.
If your usb storage device is 3 0 plugging it in too slowly might cause this error message.
How to fix usb device not connected on ps4 hope this video helped.
There are two reasons for this compatibility issue between the usb storage device and ps4.
In most cases this error message only shows up with the usb storage devices used as an extended storage.
Connect the usb storage device quickly and firmly but carefully.
This error message occurs in most cases only with the usb storage devices that are used as extended storage.
How to fix usb device not connected on ps4 hope this video helped.
What you actually need.
It is possible that some old usb storage devices are not compatible with ps4.
Then go to your ps4 and plug into the flash drive once you have a plug in your flash drive go to the settings on your ps4 and click on application saved data management then press x on the saved data in system storage then copy to your usb storage device and now you go to each game and then select the data to the flash drive when you replace the hard drive then you have saved all your games in flash drive.