Expo publish to update SplashScreen and Icon

I have an Expo App build that runs on a Device.

Everything works great. My question is if it is possible to change the SplashScreen and the AppIcon by OTA Updates? I changed my app.json and swapped the 2 Images Files with the new ones. On the Emulator it works but it doesnt seem to work on the Device where the app is already installed (sideloaded) it does not change the app icon or the splashscreen. Does it have to be sideloaded and build again?

Ty Faded

As described here:

https://docs.expo.io/workflow/publishing/#limitations

updating the splash screen, icon, and most of the configuration in app.json, cannot be done OTA.