: Most KEYone variants (especially those from US carriers) have non-unlockable bootloaders. If yours is locked, it will only boot official, signed BlackBerry software.
button can force the device into the bootloader menu every time it starts. Ensure your case isn't pressing the buttons and that they click freely. Navigate the Menu : If the menu is responsive, use the Volume Up/Down keys to highlight "Continue the bootup" and press the Power button to select it. Reload Firmware (Autoloader) : If the software is corrupted, you may need to use an Autoloader on a PC to reflash the OS. blackberry keyone stuck in bootloader menu repack
Now that your KEYone is alive, take these precautions: : Most KEYone variants (especially those from US