Roll back to stock

[tbilic14]

I installed MHI2_ER_AU57×_K3663_1, is it safe to flash back to stock MHI2_ER_AU57×_P3634 and what should I make sure before doing it?

I read something about sound system might be affeceted and don’t quite understand what it means and how to make sure all goes ok…

[harman-f]

Why do you want to go back to MHI2_ER_AU57×_P3634?

MHI2_ER_AU57×_P3634 was installed originally on that unit?

[tbilic14]

Yes it was originally installed. I’m selling the car and I figure better leave it original.

[harman-f]

Leave it like it is. Going back to an older FW has a high potential of drama ;)

[tbilic14]

Thanks for the advice. Will do so.
Just out of curiosity, can you describe one potential drama? :)

[harman-f]

You have to downgrade FW with modified metainfo or force train ignore via SWDL
Some coding has to be reverted, original FecContainer copied back.