HELP!!!!!!! Cant Boot my Iphone 3gs 6.1.3 back to jailbreak

Had to turn my phone off for a day and cant seem to boot back into a jailbreak mode I have had this device for over 2 years now with no trouble of any sort till today, I have booted it back up plenty off times due to all sorts of reasons and never had a problem doing so, yes its in dfu mode no its not a firewall yes i did sync with iTunes yes i run it as admin in xp pack 2, I attempted to boot it about a hundred times already and i get 2 different responses, the first and less likely is exploit failed and the phone juts boots back up with the stranded Iphone logo, but most of the time redsw0n just sas "waiting for reboot' but my phone never leaves dfu mode.

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