I have been following this thread since day one. Thanks to the moderators for not removing this as spam, and thanks to Carbyte for reaching out in this forum.
After looking into the device, I pulled the trigger, and mine arrived two days ago. I installed it that day, and everything worked as advertised. Later that day I saw the firmware update post, and immediately updated. After two days of driving, I have found everything to worked perfect.
I do not like the start/stop feature of my new 2024 Yukon XL AT4, and I have been told for years that the AFM programming is responsible for lifter failures in several GM engines. My son graduated from college last year, and I gave him my six year old Yukon Denali with less than 80k miles. Ten days ago the lifters on that vehicle failed. He is currently working through it. I don't expect Carbyte, or anyone for that matter to guarantee that the device will prevent damage, but for the price I am willing to give it a try. Even my dealership mechanic says that the AFM is extremely problematic.
I am sure that I am doing something wrong, but I have found that I have to "reconnect" the device every time I get into the vehicle. If there is a way to configure the device to automatically reconnect every time I get in, that would be perfect. "Fire and Forget". Please advise. (yes my phone is always with me)
Thank you all for your comments, and thanks to the forum and Carbyte.