RT6 (eMyWay) Bluetooth Echo after v2.86 Update - Citroen DS5 2011

[Ixodides]

Hi everyone,I am seeking advice regarding the well-known Bluetooth echo issue on the RT6 (eMyWay) system.

Vehicle Details:Model: Citroen DS5 (2011, first reg 2012) Engine: 2.0 HDi (161 HP) Transmission: Automatic

The Problem:
I have recently updated the firmware to the latest version, v2.86. Since the update, people I call via Bluetooth complain about a significant echo (they hear their own voices). My previous firmware was a much older version (v2.21), so I missed the intermediate calibration steps.

Technical Progress:
I have used MiraScripts (RT6_USERCOM) to dump my User_config.dat file. Using DatExplorer, I have identified the following parameters in my current configuration:1.19.337: p_far_out_amplify (Current value: 87) 1.19.338: p_nr_attenuation (Current value: 12) 1.19.339: p_ec_block_delay (Current value: 0) 1.5.90: Arkamys parameters (Long hex string starting with 57,06,45...)

I have read on various threads that after upgrading from versions older than 2.3x or 2.7x, a new audio calibration is mandatory via Diagbox/Lexia. However, I would like to know if it is possible to fix this manually by editing the .dat files since I have full access to them.

Maybe someone could share the .dat files from the same parameters, or there is a place hosting those files somewhere.

[Paul-R]

Hi everyone,I am seeking advice regarding the well-known Bluetooth echo issue on the RT6 (eMyWay) system.

Vehicle Details:Model: Citroen DS5 (2011, first reg 2012) Engine: 2.0 HDi (161 HP) Transmission: Automatic

The Problem:
I have recently updated the firmware to the latest version, v2.86. Since the update, people I call via Bluetooth complain about a significant echo (they hear their own voices). My previous firmware was a much older version (v2.21), so I missed the intermediate calibration steps.

Technical Progress:
I have used MiraScripts (RT6_USERCOM) to dump my User_config.dat file.

I have read on various threads that after upgrading from versions older than 2.3x or 2.7x, a new audio calibration is mandatory via Diagbox/Lexia. However, I would like to know if it is possible to fix this manually by editing the .dat files since I have full access to them.
somewhere.

Yes it is possible to use Mirascript to alter the configuration to reduce the echo problem. I don't know what to do directly to the files though. I haven't had this problem but I will search for an answer.

It's not a new configuration file that is downloaded using Diagbox but actually your original configuration as stored on the PSA servers. So, if you downloaded the configuration of your RT6 using Mirascript from before you did any updating then it should be possible to upload it back again on to the 2.86 firmware. This would save a lot of messing around with changing configuration settings.

[Paul-R]

I downloaded this from somewhere in 2019. It's in French and I started translating it into English but never quite finished the job. If you want my 95% translated version then I will try to post that as well

Tutorial RT6 Supprimer echo suite version 2.86.pdf

(957.71 KiB) Downloaded 61 times

[Ixodides]

Hi everyone,

I have some great news! The info from that PDF worked! Thank you Paul you saved me a lot time, money and hasle.

I managed to eliminate the Bluetooth echo (at least on first tests) on my Citroen DS5 (2011) without using Diagbox online calibration.

I did it manually by editing the User_config.dat file via MiraScripts and DatExplorer.Here is the exact step-by-step procedure I followed:

1. Preparation of Files
- I dumped the User_config.dat from the RT6 using the RT6_USERCOM script.
- To make the necessary fields editable in DatExplorer, I had to modify the RT6_2xx-user_config.dat.cfg file on my PC.
- Crucial Tip: In my version of the .cfg file, the section numbers in brackets like [338] correspond directly to the end of the field numbers (e.g., field 1.19.338 is block [338] in the text file).
- I manually added editable=yes to all required sections.

2. Applied Configuration ChangesBased on the tutorial "Supprimer echo suite version 2.86", I modified the following:
Section 1.17 (Diag Data):
I updated fields 1.17.307 through 1.17.455 with the values specified in the tutorial to match the 2.86 calibration profile.
Section 1.19 (ECNR Data):
1.19.337 (p_far_out_amplify): set to 90.
1.19.338 (p_nr_attenuation): set to 10.
1.19.339 (p_ec_block_delay): set to 0.

3. Arkamys Audio FixThe most important part was the 1.25.465 (ec_nr_data) field.
I replaced the existing hex string with the corrected calibration code for the NON DENON HiFi system.

Hex String for DS5 (NonHiFi/Standard):
31,30,31,31,31,32,30,35,31,36,54,37,5F,53,00,00,00,00,00,00,00,00,C2,54,00,00,00,32,00,32,41,E0,00,00,41,50,00,00,00,06,41,50,00,00,C1,40,00,00,41,E0,00,00,C1,A0,00,00,00,00,00,32,42,8C,00,00,C1,C0,00,00,00,00,00,00,40,80,00,00,0F,3C,00,C8,03,E8,3F,80,00,00,00,00,00,00,07,D0,3F,80,00,00,00,00,00,00
4. Uploading to Vehicle
- I saved the changes in DatExplorer.Uploaded the file back to the RT6 using the WRITE command in MiraScripts.
- Performed a Hard Reboot by long-pressing the EJECT button.
- The echo is now completely gone, and the sound quality is perfect! If you are facing this issue after an update, don't let the dealers tell you it's impossible to fix.

Thanks for the guidance!

[Paul-R]

Great to hear that it worked for you. And thanks for your English version.

I should add that the credit should really go to the author of the PDF, Phil34 at Planète-Citroën where it is copywrite ©.

[novawaves]

Hi please i have the same problem in my rt6 in c5 x7

Please help me what i have to do for calibration.

Can i upload your edited file in my rt6?

Is there a easy way to do that?

Thx

[Paul-R]

Everything we know about Mirascript is in this thread. I cannot add to it as I have not had any problem to be fixed with my RT6, I only used it to remove the need for the activation code when installing new map data.

I have done some searching and have found the following which may also help:

https://github.com/bentalebahmed/Citroe ... /README.md
https://github.com/bentalebahmed/Citroe ... iraScripts