Arduino BT set MUX mode, now can not upload

Hello¬ every one
today I set the arduino BT to MUX mode , but now it can not upload anything, I have viewed the topic:
http://arduino.cc/forum/index.php/topic,47986.0.html
it seems that Nomis has solved this question, but when I sketched his code, it still doesn't work...
who can help me¬¬¬ =( =( =( =(