I have a 1.5TB Seagate Backup Plus USB 3.0 drive that somehow is only reporting 4GB in pretty much every system util I can find (Windows Disk Management, TestDisk, GParted, etc.) The 4GB size is uninitialized, and I'm afraid to either create a partition or do anything to the drive for fear of deleting the contents on the 1.5TB part of the drive.
The 4GB seems suspect. In other words, I'm thinking there's some sort of 4GB flash on this to provide functionality (like bitlocker) that should otherwise be hidden from the low level utils.
Any way to resurrect that other part of the drive, or otherwise recover that data?