while i was upgrading my s2 from gingerbread 2.3.3 to the new version through samsung kies the datacable got unplugged, now a mobile and a pc appear on my s2 screen with a yellow triangle between them.. it is not going to recovery mode.. just going to download mode. ive tried samsung kies recovery but its not working.. plz suggest me what to do now.. phone is not booting at all