Invalid serial number.

fctry286

WhisperMax
Jul 30, 2010
254
0
0
San Diego.
I am trying to retune my truck using V8 and it keeps telling me to reset my v2. Serial number invalid. I can flash using v7 but not 8. The tune is saved to v8. What do I do. Thanks
 

paint94979

Beer Nazi
Sep 18, 2006
11,715
8
38
37
I am trying to retune my truck using V8 and it keeps telling me to reset my v2. Serial number invalid. I can flash using v7 but not 8. The tune is saved to v8. What do I do. Thanks

save it as a .tun instead of a .ctz file and use the V7.5 software
 

BlkMax

Member
Sep 1, 2008
743
4
18
Wasilla, AK
Is all of your software updated? I think you need to update to the latest version of V8, V7.5, and then use V8 to update the bootblock on the V2.
.
You could also ask the author of the tune for a *.tun file format versus the *.ctz file...
 

00f3fiddy

New member
Sep 27, 2011
136
0
0
Did you ever come up with a fix? Im up to date from what I can tell and I have the same exact problem!