Had WD passport since last June, now not showing up on desktop,time machine, finder (external drives is checked) or anywhere. I was able to run WD utility quick check and that failed. it just blinks when plugged in to a USB port. Tried all my USB ports. Tried to plug it into another Mac and nothing showed up. Next steps?
It appears that your device is not functional and needs to be replaced under warranty period. You can submit a replacement request from below mentioned link.