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Samsung Galaxy S21 (SM-G991B) - O2U - G991BXXU1AUA4 firmware
| PDA | G991BXXU1AUA4 |
| Product Code | O2U |
| Security Patch | 2021-01-01 |
| Country | |
| Model | SM-G991B |
| Product Code | O2U |
| Security Patch | 2021-01-01 |
| OS Version | Android 11 |
| PDA | G991BXXU1AUA4 |
| CSC | G991BOXM1AUA4 |
| Build Date | 2021-01-6 |
| Changelist | 20701476 |
| Country | |
| Model | SM-G991B |
| OS Version | Android 11 |
| CSC | G991BOXM1AUA4 |
| Build Date | 2021-01-6 |
| Changelist | 20701476 |
