Solution to U9 deads by MSS was cheat the MSS software.
When you try to unlock a U9 with MSS process seems to be ok but after unlock phone simply hangs on Motorola Logo, after flashing stucks on Hellomoto logo, and never connects in normal (modem) mode, so only way to connect is in flash mode, but MSS software won't let you start process, so solution was first connect one brand new U9, then go to imxx repair option, check Unlock option, fill the imei with the dead u9's iimei then start process; at this point I disconnect brand new U9 and connect in flash mode the dead U9, after process finished the U9 was restored ok, unlocked and with imei fixed to it's original state...at first seems to be just a flash problem, but then I realize that MSS was messing around with something else, still don't get it why I could repair that phone with this "method"...
BR.-