I had the same problem yesterday too, I ended up reflashing 1.3 manually and reinstalling all my programs again. Start out with fapman (faster application manager, for the GUI-users) and then tick all items you want installed from there. Did it all in once, ran out of free space on rootfs so got a couple of broken packages, fixed that and was back online in about an hour (after I found out my reboot-loop was caused by an almost-empty battery). with all my data intact. Even the settings from programs I reinstalled were still there . I had access to the shell too, but was unable to fix anything from there because of the inability to use the FN-arrow. So while you can access the filesystem from there out, I haven't actually found any use for it yet, because even numbers are untypable (is that spelled correctly?)