Dear Booxtor, when my firmware was updating I reset the machine (I regret I was too impatient) and now it doesn't start at all. All it does is blinking black-white-black-white ... for several times and finally freezes at either all black or all white. I must have damaged the filesystem.
Trying to install new firmware does not help. It does flash a sentence saying "checking for updates" but then it just blinks and freeze as described above.
Is there a way to reset the machine to factory default?