Brand new Wester Digital 2 T hard drive will not format. Home Page › Forums › Cymatic Audio Forum › USB Drives General › Formatting external USB hard drives › Brand new Wester Digital 2 T hard drive will not format. 4th November 2017 at 22:24 #29068 John DaughertyParticipant Yellow light blinks when plugged in then I push format button, Then lights go yellow red green in a loop. Nothing in the manual for this loop of colors. Firmaware updated yesterday.