Jz
Hi Jz,
After reviewing our previous discussions, including the firmware upgrade and protocol data printing, it seems that the issue with your steering wheel control buttons still persists.
Now, we have two possible solutions to resolve this:
1️⃣ Bypass CANBUS: Instead of relying on CANBUS, you can connect the steering wheel button signal wires directly to the KEY1 or KEY2 wire on the power harness and manually learn the buttons in the SWC settings.
2️⃣ Verify your vehicle configuration: Different vehicle configurations require different CANBUS box models. If the CANBUS box does not match your car’s configuration, it may not decode the original car data correctly, leading to this issue.
To confirm, please check the image below to identify whether your car belongs to Type A or Type B. The harness and CANBUS you currently have are for Type B. However, if your vehicle matches Type A’s interior design, you will need to replace the harness and CANBUS unit accordingly.

Let me know your findings so we can proceed with the best solution!
Best,
Leo