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Samsung Galaxy S21 (SM-G991N) - KOO - G991NKSS4EWK2 firmware
| PDA | G991NKSS4EWK2 |
| Product Code | KOO |
| Security Patch | 2023-10-01 |
| Country | |
| Model | SM-G991N |
| Product Code | KOO |
| Security Patch | 2023-10-01 |
| OS Version | Android 13 |
| PDA | G991NKSS4EWK2 |
| CSC | G991NOKR4EWK2 |
| Build Date | 2023-11-10 |
| Changelist | 27100863 |
| Country | |
| Model | SM-G991N |
| OS Version | Android 13 |
| CSC | G991NOKR4EWK2 |
| Build Date | 2023-11-10 |
| Changelist | 27100863 |
