Aging internal flash memory (eMMC) failing to read critical boot sectors. Step 1: Force a Hard Reboots

If your BlackBerry KEYone remains completely unresponsive to both recovery mode menu selections and PC connection attempts, the device is likely suffering from an internal hardware failure, such as a dead motherboard or failed flash memory storage. In this scenario, professional hardware repair or a device replacement is necessary.

Press and hold the and the Volume Down button simultaneously. Keep holding both buttons for at least 32 seconds .

If your BlackBerry KEYone continues to return to the bootloader menu, cannot connect to the computer, or shows no response to the Auto-Loader, it is highly likely that the .

If your Volume Down button is stuck or jammed by a tight phone case, the KEYone will automatically boot into the Fastboot/Bootloader menu on every restart. Remove any protective case or skin from the device. Inspect the and Volume Down buttons.

Wait for the process to complete, then select .

Release the buttons and allow the phone to attempt a normal boot cycle. Method 2: Inspecting for Physical Button Failure