cpitchford's advice hasn't worked for me.

On my device now I can't run any applications,open any files/messages etc. Every time I attempt it the yellow error bar comes up saying 'Close Applications'. I should point out that this was happening before i tried the xterm commands post by cpitchford.

If i do have to flash the eMMC, I now have the problem that I can't get at any backup files I've got to export them and make them safe from the flash.