One UI 4 Android 12 Beta in the US 975U1

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Senior Member
Nov 18, 2017
One Ui 4.1 test build appeared on CheckFirm 👍


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Senior Member
Nov 7, 2010
You can use frija or Samfirm to. Find the one for your model then flash through odin
I'm on TMobile, I could only find FUJ8 for USC so I flashed it.. errored and was stuck in a partial recovery menu with only retry and factory reset as options. As I was downloading the factory firmware to flash, I figured I'd try to get into the standard recovery menu and try for ****s and giggles.. and it worked!? Not sure why it did, didn't expect it. But 👍 thanks for your help!

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    Credits go to u/cloud911

    N975U1 Link:

    Installation Methods:


    1. Download SDK platform tools
    2. Extract the file in your desktop.
    3. Inside the extracted folder put the file
    4. Inside this folder, holding left shift, right click the mouse and select "open command prompt here". The command prompt will open.
    5. Shutdown your phone and connect it to the pc
    6. Holding power+volume up buttons, enter into recovery mode.
    7. Select "update via ADB". (scroll down using the volume buttons and select using the power button).
    8. Connect the phone to a PC using an original samsung USB cable.
    9. In the command prompt run the following command:
    ./adb devices
    10. Wait to see that the daemon has started and that your device is found.
    11. If you device is found, run the following command:
    ./adb sideload

    SD-card method:

    1. Download the bin file and rename it to (by going to file options on your pc you can select to view the file extensions. This makes the renaming process much easier and safer, and avoids renaming the file to
    2. Copy it to the root directory of your SDcard.
    3. Shut down your phone.
    4. Connect any USB device to your device, AKG earphones could work, then press Power+volume up buttons to get into recovery mode.
    5. Using your volume keys navigate to "update via sdcard" and press power button to select it.
    6. Again using volume keys navigate to the file "" and press power button to select it.
    7. Update will start. Leave it till it completes installing. It will take some time.
    8. Phone will reboot by itself and load android.

    The update process will start. You will see a percentage counting. First it will verify, then patch etc. Do not move the cable, disconnect the phone or power off the PC.
    Once the process is completed (it takes some time) the phone will boot itself, update the apps and log into your home screen.
    How long did it take after enrollment to get to update I just enrolled got nothing yet
    Do you mind capturing the OTA files for other people ?

    Here's how.

    How to capture the update.bin file to share with other people:

    1. Download HTTP canary app from playstore

    2. Open HTTP Canary app

    3. Leave the app and go to the settings and Start the software update in settings by pressing "download" and don't pause it

    4. Go back to canary app and start it by pressing the little circle at the bottom right, and it will grab the link for you

    5. Copy the link and post it here if you wish.

    This will not trip knox if done by the methods above

    Don't install a beta unless you are fully aware what you are going into.

    Don't install the beta if you want your phone to be stable, IT'S a BETA.

    It's recommended to make a backup of your data before updating to the Android 12 Beta.
    I tried the via the sdcard method on my u1. I got an installation error something to do with the build date?
    update your software to FUJ8 first
    then sideload
    I have SM-N975U1 but am on FUK1. Can't find FUJ8. And will not install through recovery.. any help?
    You can use frija or Samfirm to. Find the one for your model then flash through odin