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Samsung Galaxy S21 (SM-G991B) - ZTM - G991BXXU7EWCK firmware
| PDA | G991BXXU7EWCK |
| Product Code | ZTM |
| Security Patch | 2023-04-01 |
| Country | |
| Model | SM-G991B |
| Product Code | ZTM |
| Security Patch | 2023-04-01 |
| OS Version | Android 13 |
| PDA | G991BXXU7EWCK |
| CSC | G991BOWO7EWCK |
| Build Date | 2023-04-11 |
| Changelist | 26203421 |
| Country | |
| Model | SM-G991B |
| OS Version | Android 13 |
| CSC | G991BOWO7EWCK |
| Build Date | 2023-04-11 |
| Changelist | 26203421 |
