Mac book cant read My passport essential 1tb after a OSX hang up

WD External Drives External Drives for Mac
5

You need to replace the drive if it continues to act up like that, and yes you can get a replacement if it’s under warranty.  Check out our RMA service at the link below.

http://websupport.wdc.com/rdsfdc.asp?linktype=rmacreate&portaltype=wd&custtype=end&fs=&ss=&lang=en