I have a 16gig 3GS (Model # MB715) with a serial starting with 88011 I heard that the last two digits of the first 5 numbers of the serial say what week the phone was made. So mine is 11? Doesn't that mean I have the old bootrom? Because Snowbreeze is telling me that I have the new bootrom and that I need my 3.1.2 SHSH blobs. Just trying to clarify things.