2021 GMC unlock issues
Moderator: sohfast94
2021 GMC unlock issues
When trying to install my tune I’m getting these messages. Tried updating the tuner as well and says it is updated. This was just purchased new from a vender that drop ships them from Holley. Followed the setup steps as well.
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- mikel
- Posts: 58789
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2021 GMC unlock issues
this should be resolved now, please update the device and try again.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: 2021 GMC unlock issues
This is what I am getting now. Using a brand new Mac. At this point I’m almost ready to just return this product. As the hours to call and talk with someone is during my work hours.mikel wrote: Mon Oct 20, 2025 4:58 pm this should be resolved now, please update the device and try again.
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Re: 2021 GMC unlock issues
As well as this.
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- mikel
- Posts: 58789
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2021 GMC unlock issues
did you not already have an account for the update agent software?
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
- mikel
- Posts: 58789
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2021 GMC unlock issues
i think i see the issue. the first name when you created the account is STefn, there is no a, so try it misspelled like that.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: 2021 GMC unlock issues
Well if that works I’ll feel dumb. And then if it doesn’t work I’ll still feel dumb bc then more then likely I fat fingered more of the infomikel wrote: Tue Oct 21, 2025 11:08 am i think i see the issue. the first name when you created the account is STefn, there is no a, so try it misspelled like that.
And my verdict is “the operation has timed out” device error.
- mikel
- Posts: 58789
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2021 GMC unlock issues
any chance you can give us a call so we can go through this with you?
561-908-0040
561-908-0040
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: 2021 GMC unlock issues
I can possibly next week as I am in class all week and I do not get off of work in time to call.mikel wrote: Wed Oct 22, 2025 9:28 am any chance you can give us a call so we can go through this with you?
561-908-0040
- mikel
- Posts: 58789
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2021 GMC unlock issues
OK, I have asked our support team to look into this.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: 2021 GMC unlock issues
Good news got it to tune. Now to play around with the settings and get it dialed in.
- mikel
- Posts: 58789
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: 2021 GMC unlock issues
great, enjoy.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]