[DieStream]

Hello,

Someone have an idea, how to fix Echo after retrofit a NBT in a E87 and in a E91?

[dumitru.o]

yes, replace the Logic 7 amp with one from F series

[simzep]

As dumitru.o said replacement with a f-series amp fixes the issue. It's plug and play (+ coding).
The f-series amp can still be powered on the speaker connector simply bridge pin 1 and 2 on the small 4-pin connector and everything works without any echo.

[Fx82]

What audio option do you have ?
If you have 677 then you can also install an individual amp of an E60/E90.
I had the same setup and the echo went away. After installing an evo unit then you need the amp of a F series.

[DieStream]

I have 677 Hifi Pro DSP and the E87 have the Same. The Indi Amp fix the problem?

[Fx82]

It worked on my car. I have 752 option.
I don't know anymore which VO I used but there is definitely a difference cause the standard one I used it had an echo.

[DieStream]

It worked on my car. I have 752 option.
I don't know anymore which VO I used but there is definitely a difference cause the standard one I used it had an echo.

Bimmerretrofit has a script for the Echo. My adapter ist from cargrade. I think they have a resolution for the problem.

[Fx82]

Maybe you can run the script and compare it then post the lines here what needs to be changed to solve the echo.

[DieStream]

Maybe you can run the script and compare it then post the lines here what needs to be changed to solve the echo.

Skript is encrypted and I need a code for the tool. That’s why I asking.

[Fx82]

Try to enable REFERENCE_CHANNEL_TEL + set REFERENCE_CHANNEL_TEL_MODE to wert_01