Downgrade using recovery by renaming the TW .13 FOTA update with the same filename described in flashing the leaked 3.1 and you should be good, keep in mind that you might need to do a factory reset or FCs will repeatedly happen.
To the guy who's obviously trolling, don't say anything if you have nothing useful to say.
Sent from my Transformer TF101
ASUS Eee Pad Transformer 32GB - EOS 4.2.2
Samsung Galaxy SIII (d2can) - PAC-Man 4.2.2