Question: how to recover data from wd external hard disk which is not detecting on mac?
Answer: Check whether the drive is properly plugged in. ...  Faulty cable. ...  Damaged USB or flash drive port. ...  Reboot your Mac. ...  Incorrectly formatted drive. ...  Mac not formatted to display external drives on the desktop. ...  Reset NVRAM. ...  Check Apple's Disk Utility to see if an external drive is showing up.