# How To GuideInstalling OneUI 4 Beta / Android 12 on US Galaxy Z Fold 3 F926U/1

#### Hero_is_Over

##### Senior Member

This is what I did to get the new beta. Feel free to tell me how dumb I am for allowing noobies to try the beta, but the more the merrier and they should know the risks....

RISKS: Phone may not be as stable as before and you will lose all your apps and data. Camera is bugged for me

1. BACK UP YOUR CURRENT BUILD USING SMART SWITCH. THIS WILL WIPE DALVIK/CACHE/DATA. Get SmartSwitch for PC HERE

3. If you are on firmware ending in AUI5 for the CSC version XAA then skip to step #6 . If you are not, then download the respective firmware HERE

4. Unzip the firmware you just downloaded as well as the Patched Odin. Run ODIN and add the BL, AP, CP, Home_CSC from the unzipped firmware to the corresponding locations in ODIN

5. Turn off phone and boot into "Download Mode" by first holding Volume +/- buttons and then hold the Power button. Now plug in your phone to your PC and you will see the first small grey square in the upper left side of ODIN turn light blue (if it does not, you have issues with either the cable or drivers).

Proceed in flashing the device by simply clicking the "Start" button.

Once it is done and your phone has rebooted... Make sure that you complete the setup process just in case of authentication issues if the phone isn't already set up

8. Turn off phone. Boot into device by holding Volume Up and then holding Power. This will take you into recovery mode, where you will see the option to "update via ADB sideload".

Use the volume down key to navigate down to that option and press power to initiate the adb sideload function

9. Open command prompt by pressing the Windows key and typing "cmd" (no quotes) and press ENTER.

Last edited:

##### Member
Bro I have SM-F926B, I downloaded the correct CSC but can't install the beta, I got a message on smd says can't read. Any help please?

#### Hero_is_Over

##### Senior Member
Bro I have SM-F926B, I downloaded the correct CSC but can't install the beta, I got a message on smd says can't read. Any help please?
This is for US Fold 3 models f926U/1. Sorry brotha. Basically you need to change the beta file you downloaded to this http://fota-secure-dn.ospserver.net...48:16&px-unum=&px-nb=UGtezEZ854jbmFcvWGxLEA== as well as flash AUJ7 firmware first. I hear UK with CSC BTE works fine. Get it at https://samfw.com/firmware/SM-F926B/BTE/F926BXXU1AUJ7 . After you replaced those files, just follow the instructions again

#### mha1021

##### Senior Member
Thanks for this Guide. But i have issue with Adb sideload update.zip
I downgrade to AUI5 and been using XAA firmware since i bought T-mobile Zfold3.
And since beta was released, I'd been trying to register for OneUI4 in Samsung Memeber app but No Banner or under rBenefit tab.
when i downloaded the update it was .bin 949981470b3948c3aa05a19e8a2edbd3.bin so i renamed it to .zip, i got the CANNOT READ message then renamed it to update.zip still the same Cannot Read.
I am using windows 11.

erneyone

#### Namolas

##### Senior Member
Haven't logged in to XDA in years. Just wanted to say THANK YOU.

#### zimgir124

##### Senior Member
Thanks for this Guide. But i have issue with Adb sideload update.zip
I downgrade to AUI5 and been using XAA firmware since i bought T-mobile Zfold3.
And since beta was released, I'd been trying to register for OneUI4 in Samsung Memeber app but No Banner or under rBenefit tab.
when i downloaded the update it was .bin 949981470b3948c3aa05a19e8a2edbd3.bin so i renamed it to .zip, i got the CANNOT READ message then renamed it to update.zip still the same Cannot Read.
I am using windows 11.
Don't rename the file.

What I always do with adb related stuff is put it in the root of my C drive. So it would be
Code:
C:\adb\platform-tools\

Then put the .bin file in here as well.

After that open cmd and do
Code:
 cd C:\adb\platform-tools\
and hit enter.

After that do adb sideload 94 and hit tab so it should autofill the name of the update file.

Let me know if you have any questions.

Last edited:

#### AlexMartin00

##### Member
Thanks for the instructions as they worked for me. I did receive an error before it finished at "(~94%) adb: failed to read command: No error". Phone booted and the system is showing One UI version 4.0, Android Version 12.

QUESTION though. What is up with the difference in Baseband version? I am seeing the official release having the last 2 digits of "JF" but on the phone just flashed, it is showing "JH".

For reference, complete Baseband version: F929U1UEU1ZUJH after flashing. Might just be my ignorance but thought I would ask.

Thoughts? And thank you again!

Last edited:

#### zimgir124

##### Senior Member
Thanks for the instructions as they worked for me. I did receive an error before it finished at "(~94%) adb: failed to read command: No error". Phone booted and the system is showing One UI version 4.0, Android Version 12.

QUESTION though. What is up with the difference in Baseband version? I am seeing the official release having the last 2 digits of "JF" but on the phone just flashed, it is showing "JH".

For reference, complete Baseband version: F929U1UEU1ZUJH after flashing. Might just be my ignorance but thought I would ask.

Thoughts? And thank you again!
The baseband is just something that gets updated, so ZUJH is the Android 12 beta firmware. Every time you update your firmware the baseband gets updated as well.

More technical: Baseband is firmware that controls all radio devices on the phone, including GPS, Wi-Fi, Bluetooth, NFC, cellular data, and more.

#### Kenkool12

##### Senior Member
Will this work on att Galaxy fold 3 since I can't get update cause att blocks it.

#### erneyone

##### New member
This is what I did to get the new beta. Feel free to tell me how dumb I am for allowing noobies to try the beta, but the more the merrier and they should know the risks....

RISKS: Phone may not be as stable as before and you will lose all your apps and data. Camera is bugged for me

1. BACK UP YOUR CURRENT BUILD USING SMART SWITCH. THIS WILL WIPE DALVIK/CACHE/DATA. Get SmartSwitch for PC HERE

3. If you are on firmware ending in AUI5 for the CSC version XAA then skip to step #6 . If you are not, then download the respective firmware HERE

4. Unzip the firmware you just downloaded as well as the Patched Odin. Run ODIN and add the BL, AP, CP, Home_CSC from the unzipped firmware to the corresponding locations in ODIN

5. Turn off phone and boot into "Download Mode" by first holding Volume +/- buttons and then hold the Power button. Now plug in your phone to your PC and you will see the first small grey square in the upper left side of ODIN turn light blue (if it does not, you have issues with either the cable or drivers).

Proceed in flashing the device by simply clicking the "Start" button.

Once it is done and your phone has rebooted... Make sure that you complete the setup process just in case of authentication issues if the phone isn't already set up

7. Install the 15 second adb installer and make sure to allow adb systemwide when asked by the program.

8. Turn off phone. Boot into device by holding Volume Up and then holding Power. This will take you into recovery mode, where you will see the option to "update via ADB sideload".

Use the volume down key to navigate down to that option and press power to initiate the adb sideload function

9. Open command prompt by pressing the Windows key and typing "cmd" (no quotes) and press ENTER.

hi I'm getting a status 1 error with my sideload

#### ElGuyarc

##### Member
I keep getting cannot read '949981470b3948c3aa05a19e8a2edbd3.bin and I do have the file on my ADB folder which is on the C drive i don't know if it matter but I'm using a windows 11 laptop

#### t3ch187

##### Member
Is there a mirror for the beta download anywhere? It looks like the link isn't working for me.

#### Dick_Stickitinski

##### Member
I keep getting cannot read '949981470b3948c3aa05a19e8a2edbd3.bin and I do have the file on my ADB folder which is on the C drive i don't know if it matter but I'm using a windows 11 laptop
was getting the cannot read error too.. the problem is the outdated adb version installed from the 15 second adb link in the op

ElGuyarc

#### ElGuyarc

##### Member
was getting the cannot read error too.. the problem is the outdated adb version installed from the 15 second adb link in the op

thank you so much...

#### Markeee

##### Senior Member
I updated my SM-F926U1 with the Beta 4 its really buggy for me
Just want to get my facts straight. Can I just flash back to non-beta ?
What will happen to my Beta status will I still be able to OTA update when the next beta comes out ?

#### Hero_is_Over

##### Senior Member
I have updated this with the newer adb binary install guide. I use the latest binaries from Android Studio and add them to path manually so I didnt know the 15 second installer was that outdated

Also yes you can downgrade by flashing the AUI5 that I posted in the guide

#### Markeee

##### Senior Member
I have updated this with the newer adb binary install guide. I use the latest binaries from Android Studio and add them to path manually so I didnt know the 15 second installer was that outdated

Also yes you can downgrade by flashing the AUI5 that I posted in the guide
Is it a good idea to wipe my data when doing an downgrade like this ?

#### aznmode

##### Senior Member
I have updated this with the newer adb binary install guide. I use the latest binaries from Android Studio and add them to path manually so I didnt know the 15 second installer was that outdated

Also yes you can downgrade by flashing the AUI5 that I posted in the guide
I thought you can't flash a previous version of Android once you're on the higher version?

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This is what I did to get the new beta. Feel free to tell me how dumb I am for allowing noobies to try the beta, but the more the merrier and they should know the risks....

RISKS: Phone may not be as stable as before and you will lose all your apps and data. Camera is bugged for me

1. BACK UP YOUR CURRENT BUILD USING SMART SWITCH. THIS WILL WIPE DALVIK/CACHE/DATA. Get SmartSwitch for PC HERE

3. If you are on firmware ending in AUI5 for the CSC version XAA then skip to step #6 . If you are not, then download the respective firmware HERE

4. Unzip the firmware you just downloaded as well as the Patched Odin. Run ODIN and add the BL, AP, CP, Home_CSC from the unzipped firmware to the corresponding locations in ODIN

5. Turn off phone and boot into "Download Mode" by first holding Volume +/- buttons and then hold the Power button. Now plug in your phone to your PC and you will see the first small grey square in the upper left side of ODIN turn light blue (if it does not, you have issues with either the cable or drivers).

Proceed in flashing the device by simply clicking the "Start" button.

Once it is done and your phone has rebooted... Make sure that you complete the setup process just in case of authentication issues if the phone isn't already set up

8. Turn off phone. Boot into device by holding Volume Up and then holding Power. This will take you into recovery mode, where you will see the option to "update via ADB sideload".

Use the volume down key to navigate down to that option and press power to initiate the adb sideload function

9. Open command prompt by pressing the Windows key and typing "cmd" (no quotes) and press ENTER.

7
5
Beta 3 dropped ZUKA -> ZUKJ

Z Fold3 US Unlocked