Hi I have a seagate backup plus which I have used successfully for 3 years without problems. Now its almost full with all my original photos....Recently it started disconnecting suddenly, i changed the cable connection to my mac and it worked for a few more months. now it's not powering up anymore.. i checked the transformer with a tester and i'm getting 12.3 V .. what else can i do? Someone said change the fuse... there are no signs of fuse on the external.. guessing it might be inside. What are your suggestions? thanks