Oooh, sounds like you changed the slots and booted into the slot that still had A12 on it before flashing the A13 bootloader??? If so, you might be in trouble. Follow @roirraW "edor" ehT advice first.Hi, so I updated my P6P via OTA and rebooted succesully to A13. However I tried to change the slot from Slot B to A and restarted the phone. Now my screen is black and doesn't react to any button presses. Is there something I could do? Many many many thanks in advance!!