put it on my 32GB sdcard and plugged it in my 16GB s3. I downloaded the new 16GB with md4 count reset yada yada yada. So it flashed smoothly, and it said succesful. But before it rebooted, twrp asked to flash supersu. I said no and it just turned off. It didn't turn back on. Took out the batter, charged it, did everything. It isn't turning on. Any ideas? I flashed ALL correct ROMs yet this happens.