Suddenly, the tablet turned off, and when I tryed to turn it back on, the screen started blinking, and I coulnd't even turn it on because it freezes every time i tryed to boot it...
I tryed restoring a Nandroid Backup, and it worked, for 10 seconds
The blinking started again, so I tried flashing a new ROM, maybe it could work, but no
I wiped the data, cache dalvik-cache, and formated system, but when I tried to choose the ROM, this message "Couldn't mount /sdcard" appeared
So, my last chance was to flash a firmware via Odin, but also, didn´t work
I enter into Download Mode, loaded the firmware, clicked start, and "FAIL" when writing "boot"
What I tried
_Stock firmware 4.1.2
_Stock firmware 4.2.2