xperia s upgrade fail

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http://forum.xda-developers.com – hi guys, this is my first post.if i do somethng wrong,sorry. i use below guide to upgrade my xperia s to ics. Quote: http://forum.xda-developers.com/show....php?t=1725078 and i got this error message and my phone will not trun on.i install all the dirvers come with flashtool and install pc campanion. when i connect the phone with flash mode,driver installing box appear and it said "semc driver fail to install and device unplug". now my phone is dead and please help me.thanks (HowTos)