If you have registered for the beta program, you can also check for the update manually, just head into the device Settings, tap on the Software update menu.
[ORIGINAL ARTICLE: NOVEMBER 25, 2020]
After rolling out 7 One UI 3.0 Beta builds for the Galaxy S20 series, 3 builds for the Galaxy Note 20 series, and 2 builds for the Galaxy Note 10 series, Samsung now starts rolling out the first beta build for the Galaxy S10 series.
Galaxy S10e: G970FXXU9ZTKF/G970NKSU4ZTKF
Galaxy S10: G973FXXU9ZTKF/G973NKSU4ZTKF
Galaxy S10+: G975FXXU9ZTKF/G975NKSU4ZTKF
Galaxy S10 5G: G977NKSU4ZTKF
If you are using a Galaxy S10 series device in the country and want to participate in the One UI 3.0 beta program, you can register via the Samsung Members app on your Galaxy S10 device.