I did the same thing to my less than 12 hours old N71 on Thursday morning. I sent my phone to iUnlock and it was fixed before noon the next day. Unfortunately Christmas screwed up my shipping so it didn't arrive until today...while I'm sitting here at work
i have a jaf/pkey (www.odeon.ca) so if you want i can try and flash it for you, i havent tried yet but its suppose to be able to revive dead bb5 phones over usb. just drop me a pm if interested