After replacing battery stereo in my jazz ask for code. It is second hand car so . I have pressed 1 and 6 buttons power on and my serial number pop on screen paid for renerate me my code . And here it is 12394 but hold on is only 6 buttons 😂 and my question now : how to enter this code? Thanks 👍👍

 

You have the wrong code.
While sitting in the drivers seat...open the glove box and drop it down to it's lowest level by pressing the hinge bars together.
Your code is on a white tag on the left side of the glove box.

 

follow instruction here; https://radio-navicode.honda.com/