- SamsungSM-G998B-AMOfirmwares
- SamsungSM-G998B-AMO firmwares
| Device Name | Model | Region | Version | OS | Build Date | Changelist | ||
| Galaxy S21 Ultra 5G | SM-G998B | AMOSpain | G998BXXU1AUB9 | 11 | 2021-02-15 | 20701476 | Download | |
| Galaxy S21 Ultra 5G | SM-G998B | AMOSpain | G998BXXU1AUAC | 11 | 2021-01-24 | 20701476 | Download | |
| Galaxy S21 Ultra 5G | SM-G998B | AMOSpain | G998BXXU1AUA4 | 11 | 2021-01-06 | 20701476 | Download | |
| Galaxy S21 Ultra 5G | SM-G998B | AMOSpain | G998BXXU1ATLF | 11 | 2020-12-10 | 20494173 | Download | |