Damn, this is a bummer... I wrote and quickly recorded a song to express my woes. I'ts titled "Bricked My First DS" Listen to it and feel my virtual pain... damn, I converted it to .wav but it wouldn't upload. It was pretty good too...Sounds like a brick to me. Even if you could get into recovery mode, you would only be able to update to 11.0, which requires a hardmod to downgrade. Unfortunately, your only option is to get a hardmod if you want to recover from the brick.