@raandoom
tried your tool once and everything went fine (changed only background colour to black). Second time I changed image too and tried to reboot, now my N900 is bricked: it doesn`t boot, flasher can`t see it (I can`t cold flash it, or flash it, or flash NOLO only), my windows box can`t see it (so drivers cannot be installed and flasher can`t see it), it doesn`t react to charger.
It`s completely dead - on power button press I can see only white light turn on, but no vibrate, white light turns off after a while and that`s all.

Are there any steps to recover it or I`m fcuked?