@velian

oh boy, dunno which are typing errors and so, but your procedure is full of mistakes.

(turn off phone)

flasher.exe -F main.bin -F mmc.bin -f

(Plug in USB)
(DO NOT TURN OFF OR REBOOT PHONE but immediately do)

flasher -F main.bin -k zImage-2.6.32.54-dfl61 --flash-only=kernel -f -R

(Phone will reboot)

install developer mode

devel-su
password

cp -R 2.6.32.54nn-dfl61 /lib/modules

depmod -a 2.6.32.54nn-dfl61

(Turn off phone)

flasher -F main.bin -k zImage-2.6.32.54nn-dfl61 --flash-only=kernel -f -R

(connect phone to USB and flashing will start)
(phone will reboot