VCM Editor Requires Writing Before Reading?

[i120bspeedy]

Hi Everyone,

I cloned my ECU and wanted to read my 2014 CLA 45 AMG (Bosch Med17.7.2) using VCM Editor and MPVI3.
When I attempt to read, it wants to write a small file first to my ECU. Is this normal and safe?

Thanks,
Aaron

[i120bspeedy]

HPTuners Support says this is normal for some Mercs. Seems scary but going for it since this is a cloned ECU and should not result in losing the ability to drive my car.

[i120bspeedy]

I tried and received the following error. Contacted Support again. Anyone else encountered this?
"Failed". "Write Transfer Aborted". It is not allowing me to attach a picture here of the error.

[Haapala]

That sounds like a difficult problem to have. It would be helpful to see a screenshot of the error so we can get a better understanding of what is going on. Can you post a screenshot of the error somewhere else, like an image hosting site, and then provide a link here so we can take a look?

[i120bspeedy]

Screenshot 2023-03-10 090648.jpg

[i120bspeedy]

Support has not been able to help me. Suggested using beta but no luck. Someone here has to have encountered this before.

Can VCM suite import bin files?

[i120bspeedy]

*Resolved*

I figured it out and wanted to share some what I discovered.

My stock ECU is part number A 270 900 21 00
I cloned my ECU to a part number A 270900 09 00

They are both Bosch Med17.7.2 and both work on my car, however, only A 270 900 21 00 works with HPTuners.

Cheers!