calterm help

[dieseltek8080]

so we have a good customer who bought a deleted isx 870 that has been destroying turbos. so after hours off the book are trying to go with rawze advice on smoothing out file. I haven't found a good tutorial and just pieces of info. when I tried connecting {**Content removed by protection bot**- content.}was shaded and inop...wouldn't choose file. read exerpt where go to unlock under tools and it found 2 devices and said connected to 3...I has no idea what that meant so I pulled out. I have 100s of hours on automotive side like sct and efi live but this {**Content removed by protection bot**- content.} is a bit scary.
anyways I fired the truck up to pull out and check engine came on as usual on start up and connected insite to verify same egr no response code. it came back with detected boot rom device and needed to reprogram. now im sure I have a template from previus repair on truck but am pretty nervous I may have royaly screwed up... don't want to touch it until I get some advice on how to proceed . I would love this guy to get on the road without having to spend 1000s hes about bankrupt now...

any help is greatly appreciated. I pray my willingness to help but ignorance to software didn't hurt this fine gentleman.

thx