Man I'm sure if TE are still having issues with writing the os then hacking is not a good idea. Plus it's just to expensive to fuck with and works good the way it is so why bother. If you need to back up files on the move just get an android tablet with a USB port. They work great for moving files to and from the op1 which solves the issues with memory. Better paying £200 bucks for a tablet than £700 for a new op1.