Updates
Samsung Galaxy S21 gets December 2021 patch with third Android 12-based s/w update

The Galaxy S21 series has started getting a new software update in Finland, which brings the December 2021 security patch. On November 15, Samsung had begun to release the UI 4.0 update for the S21 models, and this third post-Android 12 OTA update comes with the most up-to-date security patches.
Samsung’s December 2021 security patch brings fixes to 5 critical, 22 high and 3 moderate CVEs from Google. Among Google’s latest CVEs fixes, Samsung has already patched 1 issue with the previous security release, while 3 of them are not applicable to Galaxy devices.
In addition to the CVE fixes from Google, Samsung brought 18 SVE items, which are described here, to improve customers’ confidence in the security of Samsung Mobile devices.
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Consumers can identify the December 2021 security patch update via PDA version numbers: G998BXXS3BUL1, G996BXXS3BUL1 and G991BXXS3BUL1 for the Galaxy S21 Ultra, Galaxy S21 Plus and Galaxy S21 respectively.
The firmware update is currently rolling out to the Galaxy S21 users in Finland, however, a broader rollout should happen in the coming days/weeks. If you want to check for updates manually, head to device Settings >> Software updates >> Download and install.
One UI 4.0 is the latest Samsung mobile software that is based on Android 12 and provides you with simple and seamless features including customization in the user interface. The all-new user interface enables you to create a customized mobile experience to meet your unique needs.
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Updates
Galaxy S22, S22+, and S22 Ultra get June 2025 security update

Samsung has pushed the June 2025 security update for Galaxy S22, Galaxy S22 Plus, and Galaxy S22 Ultra smartphones. This update is currently rolling out for users in Korea, and the company will soon expand it to more countries.
Users of the Galaxy S22 series can identify the June 2025 security update through One UI build versions given below.
- S901NKS7FYF1 – Galaxy S22
- S906NKS7FYF1 – Galaxy S22 Plus
- S908NKS7FYF1 – Galaxy S22 Ultra
The company is releasing a new software update with system security improvements to keep your files and data safe on your phone. It also optimizes system stability to offer you uninterrupted and seamless functionality on your device.
Users of the Samsung Galaxy S22 series smartphones can install the latest update to make their devices more secure and stable. You can download the update via Settings >> Software Update >> Download and install.
June 2025 Security Patch Details
Samsung’s June 2025 security update addresses 36 high-level Common Vulnerabilities and Exposures (CVEs) provided by Google. These Android-related fixes have been integrated into Samsung’s One UI security patch.
In addition to the Android patches, Samsung has included 19 Samsung Vulnerabilities and Exposures (SVE) items in the June 2025 update. These enhancements aim to boost the overall security and stability of Galaxy devices.
One UI 8 Update
Samsung is currently testing One UI 8 features on the Galaxy S25 series. The company also confirmed to unveil the One UI 8 stable update with Galaxy Z Fold 7 and Galaxy Z Flip 7 smartphones in July 2025. After that, the company will expand the update to more Galaxy devices, including the Galaxy S22 series.
Updates
Samsung’s surprise Galaxy Watch 4 update feels like distraction from One UI 8 Watch

Samsung Galaxy Watch 4 and Watch 4 Classic are getting a firmware refresh in the US amid One UI 8 Watch update uncertainty. Verizon has just pushed a new security patch dated March 2025 to Samsung’s OG Wear OS smartwatches.
Recently, Samsung announced the One UI 8 Watch Beta Program. The company has also revealed eligible watch models that exclude the Watch 4 series. It’s the first official hint that the OG wearables may not get the One UI 8 Watch update.
The Galaxy Watch 4 series at Verizon is getting the March 2025 security patch. We are about to enter July, and the carrier providing an old patch seems a bit weird. However, it might be the last OTA, hitting the end of support next month.
You can update the Watch through the Galaxy Wearable app on your smartphone. Open the app and enter the Watch settings section. You will find the Watch software update at the bottom, from where you can get the new OTA.
Software Version:
- Galaxy Watch 4
- R865USQU1IYCD (40mm)
- R875USQU1IYCD (44mm)
- Galaxy Watch 4 Classic
- R885USQU1IYCD (42mm)
- R895USQU1IYCD (46mm)

Source – Samsung
Galaxy Watch 4 was launched alongside the Galaxy S21 series in 2021. Samsung usually offers four years of software updates support on wearables. That makes the Watch 4 series, probably, ineligible for another big OS upgrade.
We’ve already predicted Samsung’s potential move to exclude the Watch 4 series from One UI 8 Watch. As the official version debuts in July, the rollout may kick off in August or September, which is passing the July support end deadline of Watch 4.
Wear OS 6-based One UI 8 Watch will be available in South Korea and the US this month. The Watch 5 and later models are eligible for the Beta, and Samsung might surprise Watch 4 users with a direct switch to One UI 8 Watch software.
Updates
US Galaxy Watch FE models get a fresh firmware update

Amid One UI 8 Watch Beta preparation, Samsung is rolling out a new update with the May 2025 security patch to the Galaxy Watch FE in the US. The update is currently live for Watch FE models on the Verizon network carrier, and the company will soon expand.
Users of the Samsung Galaxy FE in the US can verify the May 2025 update via build version R866USQS1AYE9. This update provides the most up-to-date Android security for your device to make it more secure and stable.
Through new updates, Samsung is making its Galaxy Watch FE ready for the next major update. Recently, the Korean tech giant announced the release of One UI 8 Watch Beta soon in Korea and the US. And the Galaxy Watch FE is on the eligible list.
Notably, Samsung’s May 2025 patch brings 58 high-level issues from Google’s Android security bulletin. No critical or moderate issues were found this month. In addition, Samsung added 20 of its own security fixes related to One UI, with 13 of them explained in detail. These updates further improve the safety and performance of Galaxy devices.
If you have a Galaxy Watch FE Classic in the US, you can check for the update by going to the Galaxy Wearable app on your phone. From there, go to Watch Settings >> Watch software update >> Download and install.
It’s important to keep your watch charged and connected to Wi-Fi during the update to make sure everything goes smoothly. This update makes your watch more stable, secure, and reliable.
Install the update now and enjoy enhanced features, as well as make your device ready for the One UI 8 Watch Beta update.
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One UI
Verizon dropped Android 15 (One UI 7.0) for Galaxy A15 in the US

Verizon is finally bringing the Android 15-based One UI 7.0 treat to the Samsung Galaxy A15 in the US. Earlier, the smartphone started getting a major upgrade in the Global market, and the company expanded it to the US variants a week ago.
US carrier Verizon took an extra week in expanding the Android 15 to the Galaxy A15 5G. Users can now upgrade their smartphone to the new OS, which introduces a fresh new feel, smoother animations, and plenty of features.
Verizon’s One UI 7.0 update for the Galaxy A15 5G can be identified via PDA build version A156USQU6CYE9. The software also contains the April 2025 patch to give the device a security boost, along with adding new features.
Now Bar and Live Notifications feature is also included in the One UI 7.0. This visual upgrade makes your lock screen even more interactive, with real-time updates to be displayed on your phone’s entry window itself.
One UI 7.0 – Key features for your Galaxy A15 5G
Verizon says, One UI 7.0 brings improvements to user experience, performance, security, and privacy. The carrier has also released a detailed feature chart, describing the key additions and improvements for the Galaxy A15.
Home Screen
- Make folders bigger: You can expand the size of folders on the Home screen.
- Long press a folder, then select Enlarge to expand the folder size.
Clock
- Group your alarms: If you tend to set a lot of alarms, you can group related ones together to turn them on or off at once.
Gallery
- Create freeform collages: Now you can make photo and video collages with any layout you can imagine. Just select the Freeform option when creating a collage in the Gallery app to get started.

Image – Key features of One UI 7
Nearby Devices
- Easily connect to nearby devices: Check the devices available near you and connect to them with a quick drag and drop. You can also see available features and activate them for each device.
Camera Share
- Use your phone as a PC webcam: Camera Share lets you use the powerful camera and mic in your Galaxy phone as a webcam for your tablet or Galaxy Book.
Storage Share
- Access phone files from your PC: Storage Share lets you browse the pictures, music, and files from your phone or tablet directly on your PC without a USB connection.

Image – Key features of One UI 7
How to update your device?
After you’ve received the first notification of the software update, you can manually initiate it by going to Settings > Software updates. Under System updates, tap Download and install > Restart & install to install the update.
Updates
Samsung boosts Galaxy A55 5G security with June 2025 update

Following the One UI 7 update, Samsung has now released a new update with the June 2025 security patch for the Galaxy A55 5G smartphone. The update is currently live for users in Asian countries, and the company will soon make it available in more countries.
June 2025 security update for the Samsung Galaxy A55 5G smartphone can be verified through the One UI build version A556EXXU8BYF3 and an installation package size of 300 MB. This update is based on Android 15, and the device is eligible for the next major update.
It is worth noting that the Galaxy A55 smartphone was the only Galaxy A series device to participate in the One UI 7 Beta. Samsung has already started the One UI 8 Beta update for the Galaxy S25 series, and it is not confirmed whether the company will release a beta update for the latest Galaxy A series phones or not.
Talking about the June 2025 security patch, it fixes 36 high-level Common Vulnerabilities and Exposures (CVEs) provided by Google and 19 Samsung Vulnerabilities and Exposures (SVE) items. This update makes your Galaxy devices more stable and secure.
It is an initial rollout, so it may take some hours or days to reach all models. Users are advised to install the update promptly to benefit from the improved security measures. For those who have not received an update notification, the update can be manually checked and installed.
To install the update, open the smartphone’s settings, select ‘Software Update’, and then ‘Download and install’. Following these steps will ensure that your Galaxy smartphone is up-to-date with the latest security protections.
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