Originally Posted by antezz

Use the flasher to put the phone in R&D mode with disabled watchdogs.

Code:

flasher-3.5 --set-rd-flags=no-lifeguard-reset --enable-rd-mode -R

Then N900 will not reboot, connect to your network and to your N900 with SSH and switch portrait_wallpaper to false.

Code:

gconftool-2 --set /apps/osso/hildon-desktop/portrait_wallpaper -t bool false

Now put N900 back into production mode with flasher.

Code:

flasher-3.5 --disable-rd-mode -R