V7.4.2 !!!

[ASSAMI]

Hi,

I am trying to work on a 2007 Yukon Denali 6.2L V8.
When I try to download the file from the car I get this message!!!
“Upgrade you EFI software “

I have downloaded the last V7.4.2 (622)

CAN YOU HELP ME ON THIS !!!

[Tre-Cool]

did you upgrade your v2 interface as well?

[ASSAMI]

explain please :(

[Tordne]

You need to upgrade the firmware on the FlashScan V2 to at least .55 to use the 7.4.2 software release. There is an interactive tutorial on the downloads page that describes the process.

[eboggs_jkvl]

explain please :(
http://forum.efilive.com/showthread.php?t=5244


Elmer