Originally Posted by Solodus
Holding the power button down for 30 seconds has no effect. My problem is that I can't get past the google logo and every time I select recovery mode from fastoot the screen just goes blank and I don't see the android with the exclamation as I should.
Boot into fastboot while connected to your pc and in a command prompt type
fastboot oem device-info
Maybe your attempt at unlocking the bootloader worked.
Sent from my Nexus 5