Nexus 5 USB-debugging help?!?!? So I have my nexus 5, it was factory new ROM has never been rooted/flashed with a custom rom. So i updated to android 5.1 through the phones update option. Well it was all good until 3 days ago when I restarted the phone because the apps were crashing. Well anyway I wanted to flash the stock ROM back onto the phone because it is in a bootloop/brick and I did not enable USB-debugging. So I was going to use Nexus root toolkit to unlock the bookloader and flash the factory rom back on the phone, then relock it. I was wondering if there is a way that I can do this without enabling USB-debugging, or if I can enable it somehow from the boot loader! Please help