You're not holding it steady enough then.I can't flash it again (if you talk about writing it with tagmo) If I write it again on it, I have this : Error while writing main data (stage1) java.io.IOException: Transceive failed
And I have been tried many times to rescan them in the game.
I have had 2 incomplete flashes, and had that exact same issue//sound. I re-flashed them, and they worked. You just have to keep trying, and make sure that your phone and the tag are steady.