Xiaomi 12S China Firmware
Codename: mayfly
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Official Xiaomi 12S China firmware (codename mayfly).
The newest Fastboot ROM is OS3.0.3.0.VLTCNXM (Android 15), 7.6 GB, released 2026-03-12 03:00.
The newest Recovery ROM is OS3.0.3.0.VLTCNXM.
Files are served directly from Xiaomi’s servers. Need flashing help? Browse our guides.
Xiaomi 12S
Specs source: gsmarena.com- Released2022, July 07
- Body179g / 182g, 8.2mm thickness
- OSAndroid 12, MIUI 13
- Storage128GB/256GB/512GB storage, no card slot
Xiaomi 12S was announced in 2022, July 04, runs Android 12, MIUI 13, powered by Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm), memory: 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, available in Gray, White, Purple, Green.
Full specifications
| Network | |
|---|---|
| Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| Launch | |
|---|---|
| Announced | 2022, July 04 |
| Status | Available. Released 2022, July 07 |
| Body | |
|---|---|
| Dimensions | 152.7 x 69.9 x 8.2 mm or 8.7 mm |
| Weight | 179 g / 182 g (6.31 oz) |
| Build | Glass front (Gorilla Glass Victus), glass back or eco leather back, aluminum frame |
| SIM | Nano-SIM + Nano-SIM |
| Display | |
|---|---|
| Type | AMOLED, 68B colors, 120Hz, Dolby Vision, HDR10+, 1100 nits (peak) |
| Size | 6.28 inches, 95.2 cm2 (~89.2% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~419 ppi density) |
| Protection | Corning Gorilla Glass Victus |
| Platform | |
|---|---|
| OS | Android 12, MIUI 13 |
| Chipset | Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) |
| CPU | Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) |
| GPU | Adreno 730 |
| Memory | |
|---|---|
| Card slot | No |
| Internal | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM |
| Main Camera | |
|---|---|
| Triple | 50 MP, f/1.9, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, OIS 13 MP, f/2.4, 15mm, 123˚ (ultrawide), 1/3.06", 1.12µm 5 MP, f/2.4, 50mm (telephoto macro), AF |
| Features | Leica lens, color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60fps, 720p@1920fps, gyro-EIS |
| Selfie camera | |
|---|---|
| Single | 32 MP, f/2.5, 26mm (wide), 0.7µm |
| Features | HDR, panorama |
| Video | 1080p@30/60fps, 720p@120fps, HDR |
| Sound | |
|---|---|
| Loudspeaker | Yes, with stereo speakers |
| 3.5mm jack | No |
| Comms | |
|---|---|
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct |
| Bluetooth | 5.2, A2DP, LE, aptX HD, aptX Adaptive |
| Positioning | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| NFC | Yes |
| Infrared port | Yes |
| Radio | No |
| USB | USB Type-C 2.0, OTG |
| Features | |
|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery | |
|---|---|
| Type | Li-Po 4500 mAh |
| Charging | 67W wired, PD3.0, QC4, 100% in 42 min 50W wireless, 100% in 57 min 10W reverse wireless |
| Misc | |
|---|---|
| Colors | Gray, White, Purple, Green |
| Models | 2206123SC |
| Price | About 570 EUR |
7 versions found
| Version | Android | Type | Size | Released | Downloads | Download |
|---|---|---|---|---|---|---|
|
OS3.0.3.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.6 GB | 2026-03-12 03:00 | 0 | Download |
|
OS3.0.2.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.6 GB | 2026-01-09 03:00 | 0 | Download |
|
OS2.0.209.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.4 GB | 2025-12-25 03:00 | 0 | Download |
|
OS2.0.207.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.4 GB | 2025-10-31 03:00 | 0 | Download |
|
OS2.0.206.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.4 GB | 2025-09-17 03:00 | 0 | Download |
|
OS2.0.204.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.4 GB | 2025-08-20 03:00 | 0 | Download |
|
OS2.0.202.0.VLTCNXM
China
|
Android 15 | Fastboot | 7.4 GB | 2025-07-08 03:00 | 0 | Download |
Locked, stuck or need it flashed?
Step-by-step guides for technicians working on the Xiaomi 12S China: