I have EFILive V1 personal for my 97 C5 I want to change a few things in my sister's 2001 Chevy s-10 blazer w/OS 12202088.It scans fine and I read the PCM fine but it won't let me flash the pcm,Say's I have to license the cable to that pcm..It say's I have 2 license's.How do I get a activation code?How do I use one of my license's? I don't have to buy a license do I for that PCM? I have version 7.90.How do I go about doing this.......Thanks........Paul