Download the latest Galaxy S21 5G SM-G991B/DS Firmware U9 Package, featuring the Security Patch Level from 2024-03-01 (March 1, 2024). This update is essential for bypassing the FRP lock, reverting from root access, and switching back from custom ROMs to the original firmware. Keep your device secure and up-to-date with this crucial download.
Galaxy S21 5G SM-G991B/DS Binary 9 Android 14 Brazil ZTO G991BXXS9FXBH
| Model / Device |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 14 U |
| Operator / Carrier |
Clean ZTO (without logo, operator apps) |
| AP/PDA |
G991BXXS9FXBH |
| CSC |
G991BOWO9FWK4 |
| Modem CP Version / Baseband |
G991BXXS9FXBD |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2024-03-16 |
| Security Patch Level |
2024-03-01 (March 1, 2024) |
| Size |
7.4GB |
[quads id=2]
SM-G991B/DS U9 Brazil ZTO G991BXXS9FXAJ:
| Model / Device |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 14 U |
| Operator / Carrier |
Clean ZTO (without logo, operator apps) |
| AP/PDA |
G991BXXS9FXAJ |
| CSC |
G991BOWO9FWK4 |
| Modem CP Version / Baseband |
G991BXXU9FWK2 |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2024-02-15 |
| Security Patch Level |
2024-02-01 (February 1, 2024) |
| Size |
7.4GB |
SM-G991B/DS U9 Brazil ZTO G991BXXU9FWK4:
| Model |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 14 One UI 6 |
| Operator / Carrier |
Clean ZTO (without logo, operator apps) |
| AP/PDA |
G991BXXU9FWK4 |
| CSC |
G991BOWO9FWK4 |
| Modem CP Version / Baseband |
G991BXXU9FWK2 |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2023-12-22 |
| Security Patch Level |
2023-11-01 (November 1, 2023) |
| Size |
7.4GB |
SM-G991B U9 Panama TPA G991BXXU9FWK2:
| Model |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Panama |
| Language |
Multi-Language |
| Android Version |
Android 14 U |
| Operator / Carrier |
Clear TPA (without logo, operator apps) |
| AP/PDA |
G991BXXU9FWK2 |
| CSC |
G991BOXM9FWK2 |
| Modem CP Version / Baseband |
G991BXXU9FWK2 |
| Product code |
TPA |
| Build / Release Date |
2023-11-26 |
| Security Patch Level |
2023-11-01 (November 1, 2023) |
| Size |
7.7GB |
SM-G991B/DS U9 Brazil ZTO G991BXXS9EWJQ:
| Model |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 13 T |
| Operator / Carrier |
Clean ZTO (without logo, operator apps) |
| AP/PDA |
G991BXXS9EWJQ |
| CSC |
G991BOWO9EWJP |
| Modem CP Version / Baseband |
G991BXXS9EWJH |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2023-11-20 |
| Security Patch Level |
2023-11-01 (November 1, 2023) |
| Size |
7.1GB |
SM-G991B/DS U9 Brazil ZTO G991BXXS9EWJH:
| Model |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 13 T |
| Operator / Carrier |
Clean ZTO (without logo, operator apps) |
| AP/PDA |
G991BXXS9EWJH |
| CSC |
G991BOWO9EWI6 |
| Modem CP Version / Baseband |
G991BXXS9EWJH |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2023-11-01 |
| Security Patch Level |
2023-10-01 (October 1, 2023) |
| Size |
7.1GB |
SM-G991B/DS U9 Brazil ZTO G991BXXS9EWI3:
| Model |
SM-G991B/DSBinary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 13 T |
| Operator / Carrier |
Clean ZTO (without logo, operator apps) |
| AP/PDA |
G991BXXS9EWI3 |
| CSC |
G991BOWO9EWF2 |
| Modem CP Version / Baseband |
G991BXXS9EWI3 |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2023-09-24 |
| Security Patch Level |
2023-09-01 (September 1, 2023) |
| Size |
7GB |
SM-G991B/DS U9 Brazil ZTO G991BXXS9EWH1:
| Model |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android Version |
Android 13 T |
| Operator / Carrier |
Clean ZTO (no logo, carrier apps) |
| AP / PDA |
G991BXXS9EWH1 |
| CSC |
G991BOWO9EWF2 |
| Modem CP Version / Baseband |
G991BXXS9EWG9 |
| Product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build / Release Date |
2023-08-14 |
| Security Patch Level |
2023-08-01 (August 1, 2023) |
| Size |
7 GB |
SM-G991B/DS U9 Brazil ZTO G991BXXS9EWF3:
| Model |
SM-G991B/DS Binary 9 U9, S9, Bit 9 |
| Region / Country |
Brazil |
| Language |
Multi-Language |
| Android version |
Android 13 T |
| Operator / Carrier |
Clean ZTO (no logo, carrier apps) |
| AP / PDA |
G991BXXS9EWF3 |
| CSC |
G991BOWO9EWF2 |
| Modem CP Version / Baseband |
G991BXXS9EWF3 |
| product code |
ZTO |
| Model References |
SM-G991BZARZTO, SM-G991BZIJZTO, SM-G991BZIRZTO, SM-G991BZVRZTO, SM-G991BZWRZTO, SM-G991BZAJZTO, SM-G991BZVJZTO, SM-G991BZWJZTO |
| Build Date |
2023-06-21 |
| Security Patch Level |
2023-07-01 (July 1, 2023) |
| Size |
7 GB |
Downgrade Firmware For SM-G991B/DS:
Pre-requirements:
- Compatible Device: Galaxy S21 5G SM-G991B/DS
- Charging: Ensure your mobile is charged to at least 50%.
- Computer: A PC or laptop is necessary to perform this installation.
- Backing Up Your Android Phone: Before proceeding, back up your device. Visit here for instructions.
- Samsung USB Driver: Essential for connectivity, download and install from Samsung’s developer site.
- Downloading Odin: For the installation process, download the latest version of Odin from here.
How To Install Stock Firmware:
- Download the Galaxy S21 5G SM-G991B/DS Binary 9 Firmware files, then extract them on your computer.
- Turn off your smartphone completely.
- To enter Download Mode, simultaneously press and hold the Volume Down, Home, and Power buttons for 5-8 seconds until the screen changes.
- In Download Mode, a warning sign with a yellow triangle will appear. Press the Volume Up button to continue.
- Open Odin on your PC and connect your smartphone via USB.
- Odin will display “Added” in the lower-left corner once the device is successfully connected.
- Select the Firmware.tar file by clicking on the PDA button in Odin.
- Press the Start button in Odin to initiate the firmware flashing process.
- The flashing process should be completed within 30-50 seconds.
To verify the installed firmware, navigate to Settings, select About Phone, then Software Information. Locate the firmware number listed as “Baseband version.”
Follow Detail Guide
