well i installed the latest pre release, updated the firm ware to the newest as described in the instructions. I was able to connect to my truck, (BTW it is an 04 GMC Sierra w/4.8, running COS3 04073003), it downloads just fine no errors. Then when i go to pull the tune off the V2, i get
$0101: No Data Recieved...
I have tried formating and reloading all the config files, creating new option.txt file,.... I choose the LS1B module...
Also the file itself shows to be 499k, instead of 726k like my regular files....