It seems I can't flash my Darksoft MVS no more.
I bought it in April, everything was ok (well, around 50hrs of playing...

'), I left the MVS unplugged for some weeks, then turned it on yesterday, tried to change flashed games and I got stuck at black sceen during reflashing (like 20min)and I was forced to turn it off.
Then I update fw and menu to the latest, updating went fine, but the problem persisted, still unable to flash.
So I format the SD card, put the games back directly from my PC HDD.
I flash just one game and it's ok.
Reboot, try to owerwrite first slot and put games in the other two... and I got stuck on flashing.
Extracted SD, formatted again, put only 3 roms on that to make it faster, and got a flesystem message, garbled screen and then this...
...which was kinda scaring.
I was able to go back to 1 slot working (reformatting SD), but nothing else.
NVRAM was cleared before every passage.
Any ideas? Is something broken\bricked?
Here is my setup:
Consolized JNX MVS (MV1C board)
8GB SD card (Sony HC 90mb/sec, not a fake one)
Smokemonster's latest pack.
Thanks...