This occurs to me too. My device is mk808b pro (s905 stick). I bricked it many time after doing ssh installtointernal repeatedly (or maybe with "reboot from NAND" command, I'm not sure which one cause it.)
I tried many times and search a lot but no solution found yet.
I think I will have to settle with using LE only from sd card booting.
Which versions have you tried? because i have tried only 009.
Is this a bricked situation? i thought that when it is bridged nothing works, not even boot from sd.
Might this is a case of worng device file tree?