I was just uploading a tune to my 2005 C6 and ended up with a timeout error during writing, seemed odd since I had written to this car multiple times with no problems. Labtop battery and car battery were both fine. Went to rewrite and got an unregistered error. Now the car will not start at all and the ECM seems to be dead. I am leaving my battery unhooked for a bit and will try to start in a bit but has anybody else had this happen before? I am getting all kind of errors on the DIC and as soon as I press engine start the dash goes black. Please tell me I did not just brick my friggin ECM for no reason at all!