New passport. Backed up MacBook files on 2010 model. Plugged into 2014 MacBook and continues to restart with error message. Apple Store tech made sure it was the drive and suggested contacting WD. Yes they will replace a new one and no data will be saved. Someone suggested removing the disc from the WD and remount in another case as the problem will invariably be the interface not the disc. Any pointers on how and what to get for a new case? If I ever get my data back I'm getting an ssd , and it won't be WD