An optical device? You mean like a CD-ROM drive?
When you connect via USB, swipe down the notification panel and look for the USB icon. If you see it there, tap it and make sure MTP is selected. On the computer, click the X associated with the prompt about the optical drive, and then open Windows Explorer. Do you see the phone in the device list? If so, open it, and you should see the user-accessible folders there.
Some phones come with part of the internal storage partitioned like a CD-ROM drive, and when you connect it to the PC, it tries to auto-open that partition (usually because there's some kind of Windows program you can install on your computer to help manage the phone -- which is usually completely unnecessary).
12-06-2018 03:02 AM