If you don't mind typing it out could you step by step explain how your doing the flashing? Both rootfs.bin zImage.pr13 are in the flasher folder? N9 is turned off and not plugged into the PC? You type in : Code: flasher -a rootfs.bin -k zImage.pr13 --flash-only=kernel --suppress-warranty-warning -f Press enter, see a message asking to plug in device, to plug N9 to your PC and then turn it on?
flasher -a rootfs.bin -k zImage.pr13 --flash-only=kernel --suppress-warranty-warning -f