The Samsung Galaxy Note20 Ultra 5G locked to AT&T's network is receiving the stable build of Android 11-based One UI 3.0. The firmware carries version number N986USQU1CTL2 and requires a download of around 2.5GB. A complete changelog of the update is currently unavailable, but you can expect it to bring redesigned UI and new features to your Note20 Ultra 5G. Android 11-based One UI 3.0 stable update for Note20 Ultra 5G The One UI 3.0 update for AT&T's Note20 Ultra 5G is rolling out over the air and should reach all the units soon. But if you can't wait for it, you can try...
Source: https://www.gsmarena.com/samsung_galaxy_note20_ultra_5g_att_android_11_one_ui_3_stable_update-news-46715.php
