This is what happen to mine 4000NEX
I currently have 1.08 firmware on the unit n when i try to update to 1.11 by SD memory, everything seem OK until I hit "START" on the screen.
nothing shows up but the unit reboot and shows "software error" n just brick my unit.
i have try to disconnect battery power or hit reset, but nothing work.
plz help me if you know how to get this fix!
i am so regretted for what i did. should never update firmware when isn't necessary.