i tried the dd command but it fails and then try to install the recovery tools it failed again the root showing these message "Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: recovery-tools: Depends: libncursesw5 (>= 5.7 - 1) but it is not installable Depends: libncursesw5 (>= 5.7 - 1) but it is not installable E: Broken packages"
Nokia-N900:~# apt-cache policy libncursesw5 libncursesw5: Installed: 5.7+20081213-1.maemo1+0m5 Candidate: 5.7+20081213-1.maemo1+0m5 Version table: *** 5.7+20081213-1.maemo1+0m5 0 500 https://downloads.maemo.nokia.com ./ Packages 500 https://downloads.maemo.nokia.com ./ Packages 100 /var/lib/dpkg/status