How To Fix Playstation 4 Disc Drive. Gently slide off the left HDD bay cover panel as seen below. This may take a bit of force to open and you will hear a fairly loud click when the top cover detaches.
Turn on the power button and try using a disc on the system. Then, let it sit for at least two minutes before reattaching all the cables and powering on your system. Right-click the external drive in the Disk Management window and select Change Drive Letter and Paths.
To resolve this issue, follow these instructions for your version of Windows.
Until I found a fix that worked for me every single time.
This option is less likely to require BitLocker recovery key if system disk is BitLocker encrypted. Open Disk Management: Press the "Windows key + X" and select "Disk Management" from the menu. Gently slide off the left HDD bay cover panel as seen below.