https://www.androidsage.com/2019/11/15/download-android-10-beta-4-for-exynos-galaxy-s10e-s10-and-s10-plus-one-ui-2-0-beta-4-zsk9-build/
Download Android 10 Beta 5 for Exynos Galaxy S10e, S10, and S10 Plus [One UI 2.0 beta 5 ZSKF build]