Xda s21 android 12

Samsung teases One UI 4 beta based on Android 12 for the Galaxy S21 series

Samsung today announced that it will kick off the One UI 4 beta program for the Galaxy S21 series soon. The company shared the info in a recent post on the Samsung community forums, which includes the following banner image.

While the banner doesn’t mention a specific date for the One UI 4 beta rollout, it reveals that the beta release will be based on Android 12, and it will be available for the Galaxy S21, the Galaxy S21 Plus, and the Galaxy S21 Ultra. Furthermore, it reveals that Galaxy S21 users will be able to participate in the beta program by registering through the Samsung Members app on their devices. The app will push a notification when the One UI 4 beta is available, and users will be able to click on the banner image to register for the program.

At the moment, Samsung hasn’t shared any details about the new features you can expect to see in the One UI 4 beta release. However, Twitter user Chun (@chunvn8888) claims that the update will include icon and color changes, along with the new features coming in Android 12. They further add that Samsung will also adapt Android 12’s Material You design language in the upcoming release, provide better optimization for Snapdragon 888/Exynos 2100 powered devices, and offer minor Knox updates.

Although Samsung is yet to share a One UI 4 release timeline, Chun claims that the beta rollout for the Galaxy S21 series will begin in August. The stable release will likely follow sometime in November or early December. The rumored timeline leads us to believe that Samsung may announce the beta program during the Galaxy Unpacked event next month. We’ll update this post as soon as we learn more about the One UI 4 beta program.

It’s worth noting that several other OEMs have already announced similar Android 12 beta programs for their flagship devices. For more details, you can check out our extensive Android 12 coverage by following this link.

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One UI 4 Beta program lets Galaxy S21 users try out Android 12

Ahead of the iPhone 13 launch tomorrow, Samsung has just announced an incentive to keep some users from switching: a major software update for the Galaxy S21 series. Starting September 14th, owners of the Galaxy S21, S21+, or S21 Ultra in select countries can try out the Android 12 update ahead of its stable release. The One UI 4 Beta program officially begins tomorrow in the U.S., and we’ll of course be doing a hands-on of the new update when we get our hands on it, but for now, here’s a preview of what to expect.

Samsung confirmed today that the Galaxy S21’s One UI 4 Beta update will be based on Android 12, which means it will inherit a lot of the new features Google is introducing in the new OS version. The company says that One UI 4 “introduces new and improved customization and privacy capabilities that give users control over many aspects of their mobile experience” but falls short of confirming if Material You‘s wallpaper-based theming is included. However, they do state that there will be “a wealth of theme options [to] let you adjust the look and functionality of your device, giving you tools to configure your home screen, icons, notifications, wallpapers and much more.” We’ll have to wait and see what the settings menu looks like in the One UI 4 Beta to confirm how extensive the theming options really are, but Samsung is already one of the better OEMs when it comes to theming.

Samsung also confirms that One UI 4 brings new “redesigned, upgraded widgets” that offer “deep customization” from their visibility to their appearance. The company shared a screenshot of what some of their widgets look like. They also shared an image of the AR Emoji Studio app, which provides “a more robust and diverse array of emojis all in one place, so you can effortlessly navigate your options to enjoy richer communication experiences.”

Next, Samsung highlighted some of the new privacy and protection features available in the One UI 4 beta. A status bar indicator will alert the user when apps are using the camera or microphone. The new privacy dashboard shows the extent of permission usage by apps, offers a timeline of permission accesses, and provides easy access to manage permissions. These privacy features are part of Android 12, so they will be available on all devices running the new OS. Samsung says it has expanded upon Android 12’s privacy dashboard, though, as its software shows permissions history from the last seven days and not just the last 24 hours.

The One UI 4 Beta will be available for users with the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra in China, India, Germany, Poland, South Korea, the UK, and the US. To enroll, you’ll need to download the Samsung Members app and click on the in-app banner once it shows up. Samsung will collect feedback from participants to fine-tune the One UI 4 user experience before rolling out the stable update later this year. Google plans to roll out Android 12 to Pixel phones in early October, so Samsung won’t be too far behind.

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Samsung rolls out the second One UI 4 beta based on Android 12 for the Galaxy S21 series

Samsung launched the One UI 4 Beta program last month to give Galaxy S21 users a chance to experience Android 12 on their devices before the stable rollout. The first One UI 4 beta release for Samsung’s flagships included several new features, including redesigned home screen widgets, new lock screen features, animated stickers for the Always-on Display feature, new charging animations, and so much more. Samsung is now rolling out the second One UI 4 beta update to the Galaxy S21 series, and it brings a few additional changes.

According to recent reports on our forums, the second One UI 4 beta update for the Galaxy S21 series has already started rolling out to users. The update (software version ZUJ1) brings a couple of new features, along with several bug fixes and performance improvements. Its changelog is as follows:

• Bugs that have been fixed
  • Apply color theme
  • Add Mic mode (Standard, Voice emphasis, All sounds) during video call
  • Apply RAM Plus (virtual RAM)
  • Improved typing accuracy of Samsung keyboard
  • Fixed an issue that Secure folder was closed when running
  • Performance improvement
  • Apply other many improvements

The color theme feature mentioned in the changelog refers to a feature that lets you set up a system-wide theme based on the dominant colors from your phone’s wallpaper. While the feature sounds pretty much like Android 12’s dynamic theming, it puts the controls in the user’s hands. As you can see in the following screenshot, the feature generates a couple of color themes based on your current wallpaper and lets you choose the accent color.

(Screenshot: XDA Senior Member adamlee2012)

As mentioned earlier, the second One UI 4 beta update is already rolling out to Galaxy S21 users in several regions. If you’re already enrolled in the beta program, you should receive the OTA notification on your device sometime soon.

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S21 OneUI 4.0 Android 12 Beta (Snapdragon) OTA link

Breadcrumb

Dak OTA

New member

After being unable to find any link for the S21 Beta 1—> Beta 2 OTA, I decided to revert to Android 11 via Smart Switch (PC version). Shortly after that was finished, I opened the Samsung Members App and was immediately greeted with an invitation to join the beta program. I never had the option before, and I have a factory unlocked U1 model bought from Google Fi.

Since users will likely have to downgrade anyway to receive future official builds, you might as well try. Smart Switch for PC was something I didn’t even know existed until now, and it was much simpler and faster than ODIN flashing (I assume safer also).

Beta 2 is much better than Beta 1 in my experience. On Beta 1, callers could not hear my voice about 75% of the time for no apparent reason. Mic worked just fine elsewhere, but it was an extremely frustrating issue that I couldn’t even report bc I wasn’t officially in the program yet.

TLDR: Smart Switch for PC, downgrade to last stable, check members app after.

Proprietor

New member

After being unable to find any link for the S21 Beta 1—> Beta 2 OTA, I decided to revert to Android 11 via Smart Switch (PC version). Shortly after that was finished, I opened the Samsung Members App and was immediately greeted with an invitation to join the beta program. I never had the option before, and I have a factory unlocked U1 model bought from Google Fi.

Since users will likely have to downgrade anyway to receive future official builds, you might as well try. Smart Switch for PC was something I didn’t even know existed until now, and it was much simpler and faster than ODIN flashing (I assume safer also).

Beta 2 is much better than Beta 1 in my experience. On Beta 1, callers could not hear my voice about 75% of the time for no apparent reason. Mic worked just fine elsewhere, but it was an extremely frustrating issue that I couldn’t even report bc I wasn’t officially in the program yet.

TLDR: Smart Switch for PC, downgrade to last stable, check members app after.

Dak OTA

New member

valiii 007

Senior Member

After being unable to find any link for the S21 Beta 1—> Beta 2 OTA, I decided to revert to Android 11 via Smart Switch (PC version). Shortly after that was finished, I opened the Samsung Members App and was immediately greeted with an invitation to join the beta program. I never had the option before, and I have a factory unlocked U1 model bought from Google Fi.

Since users will likely have to downgrade anyway to receive future official builds, you might as well try. Smart Switch for PC was something I didn’t even know existed until now, and it was much simpler and faster than ODIN flashing (I assume safer also).

Beta 2 is much better than Beta 1 in my experience. On Beta 1, callers could not hear my voice about 75% of the time for no apparent reason. Mic worked just fine elsewhere, but it was an extremely frustrating issue that I couldn’t even report bc I wasn’t officially in the program yet.

TLDR: Smart Switch for PC, downgrade to last stable, check members app after.

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[Android 12] [EXPERIMENTAL] [RE-UPLOADED] AOSP Android 12 for A21s

Breadcrumb

grccorps

Member

This is Android 12 ROM built from Google’s AOSP sources released on October 4, 2021. The sources are based on the Lineage OS for A21s, with some modifications for Android 12.

NOT WORKING:
Samsung Proprietary Apps (Samsung Health, etc.)
VoLTE & VoWifi (Due to Samsung’s twisted & wicked IMS service)
Auto Brightness (The phone doesn’t have the sensors for it anyway)
ExFAT-formatted SD Card & OTG (there are legal problems associated with it.)

Working but buggy or not tested:
Audio volume is smaller than usual (WIP)
RIL starting up late on very rare occasions. If telephony doesn’t work after reboot, please allow up to a minute.
Cell broadcast (emergency messages) is working in South Korea, but not tested in other countries

Working, but needs installation of additional apps:
NFC, Screen Sharing, Wi-FI Direct works, but needs installation of additional apps to work
Browser app is not installed by default. Installing Chrome from Google Pay is recommended
The search bar on the home launcher is useless until «Google» app or «Google Go» app is installed.
GPS & Location services don’t work when GApps are not installed.
This ROM is not compatible with TWRP due to File-based encryption.
The ROM is NOT ROOTED by default. In order to root it, install Magisk from official source.

WORKING:
Everything else not mentioned above

p.s. ADVANTAGES WHEN COMPARED TO GSI Android 12:
Based on official release, whereas GSI is based on Beta 5
Working MTP
Working NFC
Working Cell Broadcast
Fixed Fingerprint removal bug
Camera works up to 48MP (GSI camera is fixed @ 12MP)
Double-tap-to-wake is working
Model number correctly matches with the actual device (shows SM-A217N instead of AOSP on ARM64)
Updated kernel graphics driver to the latest from ARM

1. BEFORE INSTALLING, make sure that you have UNLOCKED the bootloader of your device. This is a great guide that show how to do it. Also, the phone must be on the Stock ANDROID 11. If you are on binary U6/U7, please use the recovery tar for U6/U7.

2. Download the Lineage Recovery, ROM, Google Apps, ADB, and Odin. Unzip ADB and Odin to somewhere appropriate. Save the ROM images to the folder where you unzip ADB/Fastboot

3. Enable USB Debugging on the device. Go to settings->About phone->Software information, and tap the build number several times until you see the notification that the devloper settings have been enabled. After enabling developer settings, go to settings->developer settings and check USB debugging.

4. Open Command Prompt, and type «cd «.

5. On the phone, start holding down the Volume Up and Down keys. KEEP THE KEYS PRESSED UNTIL THE PHONE REBOOTS AFTER YOU TYPE THE COMMAND IN THE NEXT STEP.

6. While holding the keys down. type in the command «adb reboot recovery» on the command line.

7. After the phone reboots into download mode, press volume up to continue. Make sure that you see the «OEM LOCK: OFF» before continuing.

8. Open Odin. After opening Odin, click on AP, and select the Lineage Recovery Tar file that you downloaded in the step 2. After that, click on Start.

9. After a few seconds, if everything goes well, Odin should show «PASS» and the device should reboot into Lineage Recovery. After the device enters recovery, tap on Advanced->Enter fastboot. In some cases, touchscreen may be unresponsive or slow. If that happens, use Volume Keys to navigate and Power key to select. KEEP THE DEVICE CONNECTED TO THE COMPUTER.

10. After choosing Enter fastboot, type the following lines in the Command Prompt and press enter:
10-1. «fastboot flash boot boot.img» —> this takes around 5

10 seconds.
10-2. «fastboot flash dtbo dtbo.img» —> this takes around 5

10 seconds.
10-3. «fastboot flash super super.img» —> this takes several minutes.

11. After the steps above are complete, choose Enter recovery. After the phone enters recovery, choose Apply update->Apply from ADB

12. After choosing Apply from ADB, type «adb sideload » on the Command Prompt and press enter.

13. After about 1-2 minutes, installation should be complete. Again, ADB might show «Failed to read command» errors. As long as the phone says that it was success, this is no problem. After installing, click on the «back» icon on the top of the phone.

14. Choose Factory reset->Format data/factory reset, and reboot the device.

15. If everything went well, the phone should reboot into Android 12 AOSP. Set up the device and Enjoy!

Changelogs:
2021-10-19: Initial Release (AOSP 12.0.0_r2)
2021-10-21: Updated to AOSP 12.0.0_r3
2021-11-03: Updated to AOSP 12.0.0_r13 & added U7 support
2021-11-22: Fixed graphics issue, fixed battery issue (when battery level sometimes dropped by more than 2-3% on reboot), and fixed force crash when choosing Battery Manager in Settings
2021-11-25: Updated to AOSP 12.0.0_r15, changed battery mechanism to make it more accurate
2021-11-27: Kernel GPU driver update (R33P0 -> R34P0), LTE is now enabled by default

grccorps

Member

Zdivan

Member

Do you working on this ROM for A21s, or you working on LineageOS 18 A11, paralel with this ROM?

NuzzaimStark

Member

grccorps

Member

Do you working on this ROM for A21s, or you working on LineageOS 18 A11, paralel with this ROM?

grccorps

Member

NuzzaimStark

Member

i got this when type and enter «fastboot flash boot boot.img»

C:\Users\nussa\Downloads\platform-tools>fastboot flash boot boot.img

nothing showing in phone log

NuzzaimStark

Member

Attachments

• 

ayman9321

New member

This is Android 12 ROM built from Google’s AOSP sources released on October 4, 2021. The sources are based on the Lineage OS for A21s, with some modifications for Android 12.

It has been only 2 weeks since Android 12 came out, so there may be some instability / bugs. I will try to work it out as time goes by. Also, when Lineage 19 is released, I will try to port it too. (Shouldn’t be too hard though, as Lineage is quite similar to AOSP)

NOT WORKING:
Samsung Proprietary Apps (Samsung Health, etc.)
VoLTE & VoWifi (Due to Samsung’s twisted & wicked IMS service)
Auto Brightness (The phone doesn’t have the sensors for it anyway)
ExFAT-formatted SD Card & OTG (there are legal problems associated with it.)

Working but buggy or not tested:
Audio volume is smaller than usual (WIP)
RIL starting up late on very rare occasions. If telephony doesn’t work after reboot, please allow up to a minute.
Cell broadcast (emergency messages) is working in South Korea, but not tested in other countries
The network is set to 3G by default, so in order to use LTE, you should go to Settings->Network and Internet->Internet and change the default network setting from 3G to LTE.

Working, but needs installation of additional apps:
NFC, Screen Sharing, Wi-FI Direct works, but needs installation of additional apps to work
Browser and Music/Video Player apps are not installed by default. Installing Chrome and YouTube music from Google Pay is recommended
The search bar on the home launcher is useless until «Google» app or «Google Go» app is installed.
GPS & Location services don’t work when GApps are not installed.
This ROM is not compatible with TWRP due to File-based encryption.
The ROM is NOT ROOTED by default. In order to root it, install Magisk from official source.

WORKING:
Everything else not mentioned above

p.s. ADVANTAGES WHEN COMPARED TO GSI Android 12:
Based on official release, whereas GSI is based on Beta 5
Working MTP
Working NFC
Working Cell Broadcast
Fixed Fingerprint removal bug
Camera works up to 48MP (GSI camera is fixed @ 12MP)
Double-tap-to-wake is working
Model number correctly matches with the actual device (shows SM-A217N instead of AOSP on ARM64)
Updated kernel graphics driver to the latest from ARM

1. BEFORE INSTALLING, make sure that you have UNLOCKED the bootloader of your device. This is a great guide that show how to do it. Also, the phone must be on the Stock ANDROID 11. If you are on binary U6, please use the recovery tar for U6.

2. Download the Lineage Recovery, ROM, Google Apps, ADB, and Odin. Unzip ADB and Odin to somewhere appropriate. Save the ROM images to the folder where you unzip ADB/Fastboot

3. Enable USB Debugging on the device. Go to settings->About phone->Software information, and tap the build number several times until you see the notification that the devloper settings have been enabled. After enabling developer settings, go to settings->developer settings and check USB debugging.

4. Open Command Prompt, and type «cd «.

5. On the phone, start holding down the Volume Up and Down keys. KEEP THE KEYS PRESSED UNTIL THE PHONE REBOOTS AFTER YOU TYPE THE COMMAND IN THE NEXT STEP.

6. While holding the keys down. type in the command «adb reboot recovery» on the command line.

7. After the phone reboots into download mode, press volume up to continue. Make sure that you see the «OEM LOCK: OFF» before continuing.

8. Open Odin. After opening Odin, click on AP, and select the Lineage Recovery Tar file that you downloaded in the step 2. After that, click on Start.

9. After a few seconds, if everything goes well, Odin should show «PASS» and the device should reboot into Lineage Recovery. After the device enters recovery, tap on Advanced->Enter fastboot. In some cases, touchscreen may be unresponsive or slow. If that happens, use Volume Keys to navigate and Power key to select. KEEP THE DEVICE CONNECTED TO THE COMPUTER.

10. After choosing Enter fastboot, type the following lines in the Command Prompt and press enter:
10-1. «fastboot flash boot boot.img» —> this takes around 5

10 seconds.
10-2. «fastboot flash dtbo dtbo.img» —> this takes around 5

10 seconds.
10-3. «fastboot flash super super.img» —> this takes several minutes.

11. After the steps above are complete, choose Enter recovery. After the phone enters recovery, choose Apply update->Apply from ADB

12. After choosing Apply from ADB, type «adb sideload » on the Command Prompt and press enter.

13. After about 1-2 minutes, installation should be complete. Again, ADB might show «Failed to read command» errors. As long as the phone says that it was success, this is no problem. After installing, click on the «back» icon on the top of the phone.

14. Choose Factory reset->Format data/factory reset, and reboot the device.

15. If everything went well, the phone should reboot into Android 12 AOSP. Set up the device and Enjoy!

grccorps

Member

grccorps

Member

ayman9321

New member

NuzzaimStark

Member

Zdivan

Member

NuzzaimStark

Member

Maxis89

Member

This is Android 12 ROM built from Google’s AOSP sources released on October 4, 2021. The sources are based on the Lineage OS for A21s, with some modifications for Android 12.

It has been only 2 weeks since Android 12 came out, so there may be some instability / bugs. I will try to work it out as time goes by. Also, when Lineage 19 is released, I will try to port it too. (Shouldn’t be too hard though, as Lineage is quite similar to AOSP)

NOT WORKING:
Samsung Proprietary Apps (Samsung Health, etc.)
VoLTE & VoWifi (Due to Samsung’s twisted & wicked IMS service)
Auto Brightness (The phone doesn’t have the sensors for it anyway)
ExFAT-formatted SD Card & OTG (there are legal problems associated with it.)

Working but buggy or not tested:
Audio volume is smaller than usual (WIP)
RIL starting up late on very rare occasions. If telephony doesn’t work after reboot, please allow up to a minute.
Cell broadcast (emergency messages) is working in South Korea, but not tested in other countries
The network is set to 3G by default, so in order to use LTE, you should go to Settings->Network and Internet->Internet and change the default network setting from 3G to LTE.

Working, but needs installation of additional apps:
NFC, Screen Sharing, Wi-FI Direct works, but needs installation of additional apps to work
Browser and Music/Video Player apps are not installed by default. Installing Chrome and YouTube music from Google Pay is recommended
The search bar on the home launcher is useless until «Google» app or «Google Go» app is installed.
GPS & Location services don’t work when GApps are not installed.
This ROM is not compatible with TWRP due to File-based encryption.
The ROM is NOT ROOTED by default. In order to root it, install Magisk from official source.

WORKING:
Everything else not mentioned above

p.s. ADVANTAGES WHEN COMPARED TO GSI Android 12:
Based on official release, whereas GSI is based on Beta 5
Working MTP
Working NFC
Working Cell Broadcast
Fixed Fingerprint removal bug
Camera works up to 48MP (GSI camera is fixed @ 12MP)
Double-tap-to-wake is working
Model number correctly matches with the actual device (shows SM-A217N instead of AOSP on ARM64)
Updated kernel graphics driver to the latest from ARM

1. BEFORE INSTALLING, make sure that you have UNLOCKED the bootloader of your device. This is a great guide that show how to do it. Also, the phone must be on the Stock ANDROID 11. If you are on binary U6, please use the recovery tar for U6.

2. Download the Lineage Recovery, ROM, Google Apps, ADB, and Odin. Unzip ADB and Odin to somewhere appropriate. Save the ROM images to the folder where you unzip ADB/Fastboot

3. Enable USB Debugging on the device. Go to settings->About phone->Software information, and tap the build number several times until you see the notification that the devloper settings have been enabled. After enabling developer settings, go to settings->developer settings and check USB debugging.

4. Open Command Prompt, and type «cd «.

5. On the phone, start holding down the Volume Up and Down keys. KEEP THE KEYS PRESSED UNTIL THE PHONE REBOOTS AFTER YOU TYPE THE COMMAND IN THE NEXT STEP.

6. While holding the keys down. type in the command «adb reboot recovery» on the command line.

7. After the phone reboots into download mode, press volume up to continue. Make sure that you see the «OEM LOCK: OFF» before continuing.

8. Open Odin. After opening Odin, click on AP, and select the Lineage Recovery Tar file that you downloaded in the step 2. After that, click on Start.

9. After a few seconds, if everything goes well, Odin should show «PASS» and the device should reboot into Lineage Recovery. After the device enters recovery, tap on Advanced->Enter fastboot. In some cases, touchscreen may be unresponsive or slow. If that happens, use Volume Keys to navigate and Power key to select. KEEP THE DEVICE CONNECTED TO THE COMPUTER.

10. After choosing Enter fastboot, type the following lines in the Command Prompt and press enter:
10-1. «fastboot flash boot boot.img» —> this takes around 5

10 seconds.
10-2. «fastboot flash dtbo dtbo.img» —> this takes around 5

10 seconds.
10-3. «fastboot flash super super.img» —> this takes several minutes.

11. After the steps above are complete, choose Enter recovery. After the phone enters recovery, choose Apply update->Apply from ADB

12. After choosing Apply from ADB, type «adb sideload » on the Command Prompt and press enter.

13. After about 1-2 minutes, installation should be complete. Again, ADB might show «Failed to read command» errors. As long as the phone says that it was success, this is no problem. After installing, click on the «back» icon on the top of the phone.

14. Choose Factory reset->Format data/factory reset, and reboot the device.

15. If everything went well, the phone should reboot into Android 12 AOSP. Set up the device and Enjoy!

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