Quick reply... 71MB of free space on rootfs should be quite enough. I have 12 MB free on rootfs and can add bookmark to desktop. apt-get update apt-get clean apt-get autoremove After apt-get is finished. Switch off. Take out the battery and put it back inside. Switch on. If it doesn't help, you should probably re-flash. Read instructions carefully. It's possible to reflash system files (you lose only contacts, tweaks to system files, and installed applications; photos, videos, everything in MyDocs isn't lost), and it's possible to reflash EMMC or how it is called (everything in MyDocs is erased). Don't confuse them...