"Screen black but phone works"に関する回答Yup! I had the same problem....it's because of the dock cable....using otg etc. which consumes power from your phone affects the dock cable of your nexus5 which results in frequent black out of display due to the damaged dock cable. There is only one solution to this problem, change the dock cable. And try not to use any external drives which consumes power from your nexus5.