The Situation You attempted to restart your BlackBerry KeyOne, and instead of booting into the Android operating system, the device is displaying a screen with the following text (or similar): Fastboot Mode Product Name - BBB100- x Bootloader Version - ... Serial Number - ... Reason: Key pressed Connect USB data cable This screen is known as Fastboot Mode or the Bootloader Menu . It is a diagnostic mode used by engineers and developers to flash firmware or unlock the device's bootloader. It is not a typical "boot loop" (where the logo flashes on and off); it is a halted state waiting for a command. Fc2-ppv-1043861 - 3.79.94.248