Hello I am trying to relock the bootloader on my GN with a Mac. I am at the very last step where I have already unrooted and just need to reboot into the bootloader to relock it. Problem is, my volume down button is broken so I can't get into the bootloader that way and every time I put the command ./fastboot-mac reboot-bootloader, it keeps saying <waiting for device> Please help I need to return it because my volume down button is broken!