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新建网页 1 How to learn the SWC for Universal Android 12.0 QCM6125 Stereo
For the SWC issue, please check as below on how to do on car multimedia screen:1) Pls make sure key+canout is connected in the back of the JOYING head unit:
2) Pls go to setting-system-factory(8888)-
change model and choose Null-Null-Null as below: 
3) Pls go to the setting-Common-key to learn-steeringwheel keys learn as below to learn and set the factory steering wheel control buttons:
Step 1: click the CLEAR button.Step 2: learn and set all your factory steering wheel control buttons.Step 3: Click SAVE button.Step 4: Click the return button.Here is a video for your ref about how to learn and set the SWC buttons
If you still cannot learn and set the SWC buttons successfully, pls kindly take a video to show me how you learned and set the SWC button process, we will have a check for you.
Hope this helps.