Samsung started distributing One UI 4.0 along with Android 12 a couple of weeks ago but a newly discovered issue has now paused the rollout. The company had to halt the update for the Galaxy S21 series in South Korea due to incompatibility issues with Google Play.
According to a forum post by a Samsung community moderator, the issue with Google’s Play Store isn’t just on the Korean OEM’s end, Google needs to take a look into it as well. So until both tech giants fix the issue, the One UI 4.0 will not be further distributed.
We don’t really know how widespread this issue is but perhaps it’s mostly limited to the South Korean market and it was enough for Samsung to pull the stops of the OTA update.