RT6 2.86 Upgrade no sound?

[malecw89]

Hi all !

In feb bought car DS5 with faulty radio - dark screen , cd sound...
due looking for resolution decided to send radio to poland for repair 70£ with car vin.
after collectio radio was fitted to car and start loding citroen logo , navi showing position , fm station local but no sound? called to service where been rapaired and guy said on table radio was fully working on table, and sound working after plugged diagbox

. showing this.
posted on forum ds5 uk - users said main dealer to calibration will fix it.

anyone can advice ?
Regards

[GiveMeABreak]

That's correct. Once the latest firmware has been updated 2.86 onwards the vehicle will need a calibration file applying and this is generally only something a dealer can do - you can't do it using Diagbox as it needs to be downloaded from PSA servers directly.