| Model | MIUI | File Type | Method | Android | Upload |
|---|---|---|---|---|---|
| Redmi K50 Ultra (Japan) | V816.0.26.0.ULFJPXM | Global Stable | Fastboot | 14.0 | 08/05/2026 |
| Redmi K50 Ultra (Turkey) | OS3.0.3.0.VLFTRXM | Global Stable | Fastboot | 15.0 | 08/05/2026 |
| Redmi K50 Ultra (Taiwan) | OS3.0.3.0.VLFTWXM | Global Stable | Fastboot | 15.0 | 08/05/2026 |
| Redmi K50 Ultra (Russian) | OS3.0.3.0.VLFRUXM | Global Stable | Fastboot | 15.0 | 08/05/2026 |
| Redmi K50 Ultra (EEA) | OS3.0.4.0.VLFEUXM | Global Stable | Fastboot | 15.0 | 08/05/2026 |
| Redmi K50 Ultra (Global) | OS3.0.5.0.VLFMIXM | Global Stable | Fastboot | 15.0 | 08/05/2026 |
| Redmi K50 Ultra (China) | OS3.0.3.0.VLFCNXM | China Stable | Fastboot | 15.0 | 08/05/2026 |
| Redmi K50 Ultra (Japan) | V816.0.11.0.ULFJPXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Japan) | OS1.0.9.0.ULFJPXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Turkey) | V816.0.10.0.ULFTRXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Turkey) | V816.0.9.0.ULFTRXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Taiwan) | V816.0.12.0.ULFTWXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Taiwan) | V816.0.11.0.ULFTWXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Russian) | V816.0.11.0.ULFRUXM | Global Stable | Fastboot | 14.0 | 04/13/2025 |
| Redmi K50 Ultra (Russian) | OS1.0.9.0.ULFRUXM | Global Stable | Fastboot | 14.0 | 04/12/2025 |
| Redmi K50 Ultra (EEA) | V816.0.18.0.ULFEUXM | Global Stable | Fastboot | 14.0 | 04/12/2025 |
| Redmi K50 Ultra (EEA) | V816.0.17.0.ULFEUXM | Global Stable | Fastboot | 14.0 | 04/12/2025 |
| Redmi K50 Ultra (EEA) | V816.0.16.0.ULFEUXM | Global Stable | Fastboot | 14.0 | 04/12/2025 |
| Redmi K50 Ultra (Global) | V816.0.12.0.ULFMIXM | Global Stable | Fastboot | 14.0 | 04/12/2025 |
| Redmi K50 Ultra (China) | OS2.0.5.0.VLFCNXM | China Stable | Fastboot | 15.0 | 04/12/2025 |