Disable header sticky option at mobile breakpoints

Hi Fellas, I have two different header sections one of them for desktop other one is for tablet and mobile breakpoints. I want to disable sticky options for tablet and mobile breakpoints. Because my tablet and mobile header section have different layout design and position.

Here is my problem;

Hi Mehmet,
Have a look here: Sticky Header at Breakpoint

Thanks Stefan, I did this custom code but it didn’t worked.