Mine is also bricked with "ASSERT EFI ERROR". I had to plug out the power cable a few times (less than 5 times) and this happened.
This is a critical issue Intel should address asap for Galileo users. Intel team, Is this because of flash memory corruption or bad designed boot loader? I don't know where to start to debug this. Removing power can happen any time and we can't afford to re-flash the flash every time it happens. Smartphone doesn't brick by getting power or battery lost.