If you have the drive out of a machine and in your hand, does it wriggle if you move. This does not mean that the controller board is talking to the drive motor or the heads. BEFORE you reformat the drive, have a look at your User’s Manual (UM) and try a Reset. You can also try replacing the USB cable just as a troubleshooting step. If you can access another device just not the HD then I think your drive is in big trouble. Answer: The light is blinking because the controller board is talking to the motherboard disk access chips successfully. It is possible the partition is corrupted and you will need to format the drive in order to use it again.
If this works then the fuse link within your systems USB port/s are blown. Connect your HD to the hub (which has its own power supply & AC connection) then connect your Mac to the hub are you able to see the drive now? You may want to try another USB device off of the hub to verify things. If that too fails you will need to get a Powered Hub. series can operate anywhere from 1 to 3 pumps plus lights and blower.
Blinking light on my passport for mac for mac#
If your system is not able to see other USB devices then you have a bad USB port. Western Digital’s My Passport For Mac is a solid, compact, comparatively speedy little USB-only portable hard drive that also happens to be Time Machineready and designed for the Mac. I copied the gct file to the default location (from my memory. If not you could have a bad connection to the drive (likely USB) see if you can access a USB thumb drive or other device via the USB ports of your system if you can then the cable to the drive or the drive its self is in trouble. If you can that would imply the drive needs repair. OK open Disk Utility which is in your Utility folder in the Apps Folder. If you are sure its spinning then see if you. I assume your Mac is working its just not able to access the external WD drive. The light is blinking because the controller board is talking to the motherboard disk access chips successfully.
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