Samsung recently suspended the rollout of the One UI 4.0 update based on Android 12 after its initial version caused issues on some Galaxy devices. The good news is the company has now sorted out the problem, with Google’s help, and has reportedly resumed the release of the update for some Galaxy devices around the world.
Many were surprised when Samsung started to roll out the One UI 4.0 update based on Android 12 for select premium Galaxy devices earlier than the usual time frame. However, it was soon found that the software update comes with issues causing some devices to malfunction. It led to the temporary suspension of the update’s deployment last week.
A few days later, several posts from Samsung Members official moderators offered more details on what caused the issue. In a Dec. 23 post spotted by SamMobile, a moderator explained that the bug was due to a compatibility issue with the Google Play system. The same post confirmed that it was the reason Samsung decided to postpone the One UI 4.0 and Android 12 rollout last week.
OEMs like Samsung that maintain their in-house software overlay for Android devices can put their own spin on new Android versions. This explains why the launch of Android 12 on Galaxy devices is tied with the release of the stable version of One UI 4.0.
XDA Developers explained that this also means OEMs had to apply some changes to the native Android codebase to introduce features exclusive to their hardware products. And it is believed to be one of the causes of the Google Play system compatibility issue.
In a follow-up post on the Samsung Members forum, another moderator confirmed Samsung has “obtained a Google patch that improved the compatibility issue of the Google Play system.” This has allowed Samsung to come up with a “modified version” of the One UI 4.0 stable update.
As of Monday, Dec. 27, XDA Developers reported that Samsung has resumed the rollout of the Android 12-based One UI 4.0 for Galaxy S21 series, Galaxy Z Fold 3, and Galaxy Z Flip 3 globally. The update for the global versions of Galaxy S21 phones is labeled G99xBXXS3BULC and G99xNKSS3BULC units released in Korea. The firmware version for Galaxy Z Flip 3 is F711xxxS2BUL6 and F926xxxS1BUL6 for Galaxy Z Fold 3. The updates also include the December 2021 Android security patch.
Photo by Onur Binay on Unsplash


Google Disrupts Major Residential Proxy Network IPIDEA
Samsung Electronics Posts Record Q4 2025 Profit as AI Chip Demand Soars
Palantir Stock Jumps After Strong Q4 Earnings Beat and Upbeat 2026 Revenue Forecast
Sandisk Stock Soars After Blowout Earnings and AI-Driven Outlook
Meta Stock Surges After Q4 2025 Earnings Beat and Strong Q1 2026 Revenue Outlook Despite Higher Capex
SoftBank and Intel Partner to Develop Next-Generation Memory Chips for AI Data Centers
Pentagon and Anthropic Clash Over AI Safeguards in National Security Use
Advantest Shares Hit Record High on Strong AI-Driven Earnings and Nvidia Demand
Federal Judge Signals Possible Dismissal of xAI Lawsuit Against OpenAI
Nvidia’s $100 Billion OpenAI Investment Faces Internal Doubts, Report Says
Nvidia Confirms Major OpenAI Investment Amid AI Funding Race
SpaceX Updates Starlink Privacy Policy to Allow AI Training as xAI Merger Talks and IPO Loom
OpenAI Reportedly Eyes Late-2026 IPO Amid Rising Competition and Massive Funding Needs
Apple Faces Margin Pressure as Memory Chip Prices Surge Amid AI Boom
SpaceX Reports $8 Billion Profit as IPO Plans and Starlink Growth Fuel Valuation Buzz
US Judge Rejects $2.36B Penalty Bid Against Google in Privacy Data Case 



