The --force-architecture option is not needed. And from the above command, it looks it the package didn't get installed because of the space between maemo and _flasher. A re-install should work. Code: sudo dpkg -i maemo_flasher-3.5_2.5.2.2_i386.deb
sudo dpkg -i maemo_flasher-3.5_2.5.2.2_i386.deb