guys, i'm facing a problem here.. i've jb my phone countless time and don't see to ahve a problem. but when i did it on my friend's phone yesterday, the jb process was fine.. but now that he switched off his phone, he cant turn it back on. it shows a cable and itunes pic on the display.. and when he plugged it his com and connect it to itunes, it says that it is in recovery mode, please restore phone. this is the 2nd time we tried. what should i do?

guys.. can blackra1n be used on the new version 3.1.3?