Yes, like I mentioned above. That APK is originally designed for the S20 series which do not have adaptive refreshrate. Thus, your refresh is locked.
Someone needs to make an updated APK for Note20U.. or just use the ADB command. It's a one time effort and I believe the setting remains even after rebooting.
Sharing my own implementation and fixes for our N20Ultra (5G).
- This app now uses a 3-way toggle button to easily identify the currently set max refresh rate - 60hz, 96hz or 120hz.
- Same also to the quick settings tile, I implemented a 3-way toggle qs tile (i.e. only one tile).
- Added a switch to show fps info overlay. Fixed wrong fps info bug on app resume. The fps overlay now shows even when app is hidden. You can check how adaptive fps works on different screens.
https://labs.xda-developers.com/store/app/com.tribalfs.n20umaxhz
credits:
@satySatsZB for his S20 Refresh Rate Controller app for S20/ultra
@MasK for his input on min_refresh_rate
Edit: Requesting OP/admin @AllAboutTech @stefanz08 to update OP info. Using S20 Refresh Rate Control app on note20 ultra actually results to more battery drain and the effect persist even if the app is uninstalled. Most of these users need to use the fixed version to make the adaptive refresh rate work again.
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