Elinx, thanks for your interest.
Your surprise may be reasonable. Let me explain:
As I said, I have only a program memory backup from my stock firmware. The need is to revert to stock (tsdz2 36v, no throttle, no coaster, VLCD-5 v3.6) after trying emmebrusa firmware. I used the "google" files https://drive.google.com/drive/folders/1eGcBtTj8GrGQ4tDJAECr6ejMrpW2ZqvH
without success. The power on error was ERR-04 (Throttle failure). So last chance is using My program memory backup and (data memory , optionbyte both from "google"). This mix and match seems to work, but I am not sure if this is the right firmware as it should be. There is a slight deference on battery level indication behavior. Even the battery is fully charged, in some cases, not very often, the rightmost bar blinks when pedaling .This never happened on stock firmware. So, I don’t want surprises in the middle of a ride or damages, that’s why I am trying to find a recent good working set of stock firmware files, or at least info about the data memory and option byte. The motor is very new; the purchase was a few days ago.
I am aware about eco cycles article https://www.eco-ebike.com/blogs/eco-cycles-instructionals/tsdz2programmingfromscratch
The data memory file I used from "google" seems to be not exactly compliant with this.
This is the story in details and that’s why I post it in troubleshooting section