you can try a hardware reset. If it still is not detected after this it sounds like a bad drive. If the data is important and not backed up anywhere you would have to send it to a data recovery company to get the data back.
Hardware reset
| Legal | Terms of Use | Privacy Statement | Forum Terms of Service |
|
| © Western Digital Corporation or its affiliates. All rights reserved. Western Digital Technologies, Inc. is the seller of record and licensee in the Americas of SanDisk® products. |