@N900_NEWBIE The file is not found, because you are specifying a file that doesn't exist. There is no "/N 900" directory. I think you are getting confused with the name of the mount point. You can find where you placed your file (or any deb file) by doing this: e.g. Code: find / -iname "*.deb" -type f Then use the full path to the deb with dpkg. Although since I take it you are not familiar with linux commands you should know that you could potentially damage your device. Edit: Here is the find manual, so you know what the switches do.
find / -iname "*.deb" -type f