Samsung Galaxy Z Flip4 is a samsung device (codename: sm-f721b). FirmwareMirror hosts 64 verified firmware builds, covering: ACR, BTB, XSA, ZTO, ARO. Available as official firmware. Last updated: May 2026. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy Z Flip4 (sm-f721b). All firmware files include MD5 hash verification and are available for direct download.
| Version | Method | Size | Release Date | MD5 Hash | Download |
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| F721BXXUAHYD9/F721BOXMAHYD9/F721BXXUAHYD9 | Odin | 466.87 MB | 2025-04-01 |
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| F721BXXU9GXK8/F721BOXM9GXK8/F721BXXU9GXK8 | Odin | 472.32 MB | 2024-11-01 |
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| F721BXXS9GYA5/F721BOXM9GXK8/F721BXXU9GXK8 | Odin | 404.41 MB | 2025-01-01 |
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| F721BXXS9GXLF/F721BOXM9GXK8/F721BXXU9GXK8 | Odin | 424.86 MB | 2024-12-01 |
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| F721BXXS9GXKC/F721BOXM9GXK8/F721BXXU9GXK8 | Odin | 457.16 MB | 2024-11-01 |
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| F721BXXS9GXJA/F721BOXM9GXJA/F721BXXS9GXJA | Odin | 609.17 MB | 2024-10-01 |
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| F721BXXU8GXH9/F721BOXM8GXH9/F721BXXU8GXH9 | Odin | 649.05 MB | 2024-08-01 |
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| F721BXXS8FXF6/F721BOXM8FXF2/F721BXXS8FXF2 | Odin | 2.84 GB | 2024-06-01 |
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| F721BXXS8FXG4/F721BOXM8FXF2/F721BXXS8FXF2 | Odin | 2.84 GB | 2024-07-01 |
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| F721BXXS8FXF4/F721BOXM8FXF1/F721BXXS8FXF1 | Odin | 2.84 GB | 2024-06-01 |
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| F721BXXS8FXG3/F721BOXM8FXF1/F721BXXS8FXF1 | Odin | 2.84 GB | 2024-07-01 |
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| F721BXXS8GXIC/F721BOXM8GXH9/F721BXXS8GXIC | Odin | 645.47 MB | 2024-09-01 |
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| F721BXXU7FXE5/F721BOXM7FXE5/F721BXXU7FXE5 | Odin | 2.85 GB | 2024-05-01 |
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| F721BXXS7FXE4/F721BOXM7FXE4/F721BXXS7FXE4 | Odin | 2.85 GB | 2024-05-01 |
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| F721BXXS7FXEA/F721BOXM7FXE5/F721BXXU7FXE5 | Odin | 2.84 GB | 2024-05-01 |
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| F721BXXS7FXEC/F721BOXM7FXE4/F721BXXS7FXE4 | Odin | 2.84 GB | 2024-05-01 |
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| F721BXXSBIZB6/F721BOXMBIZB6/F721BXXSBIZB6 | Odin | 293.73 MB | 2026-02-01 |
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| F721BXXU6FXE3/F721BOXM6FXE3/F721BXXU6FXE3 | Odin | 2.85 GB | 2024-05-01 |
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| F721BXXS5EXD1/F721BOXM5EXAB/F721BXXS5EXD1 | Odin | 3.57 GB | 2024-04-01 |
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| F721BXXS5EXBF/F721BOXM5EXAB/F721BXXS5EXAB | Odin | 3.57 GB | 2024-02-01 |
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| F721BXXS5EXAB/F721BOXM5EXAB/F721BXXS5EXAB | Odin | 3.57 GB | 2024-01-01 |
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| F721BXXS4CWG8/F721BOWO4CWG8/F721BXXS4CWG4 | Odin | 2.53 GB | 2023-07-01 |
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| F721BXXU4DWH5/F721BOXM4DWH5/F721BXXU4DWH5 | Odin | 391.79 MB | 2023-08-01 |
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| F721BXXS4EWL5/F721BOXM4EWL3/F721BXXS4EWL5 | Odin | 3.57 GB | 2023-12-01 |
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| F721BXXS4EWL5/F721BOXM4EWL1/F721BXXS4EWL5 | Odin | 3.57 GB | 2023-12-01 |
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| F721BXXS4DWJ2/F721BOXM4DWH5/F721BXXS4DWJ1 | Odin | 2.93 GB | 2023-10-01 |
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| F721BXXS4DWI1/F721BOXM4DWH5/F721BXXU4DWH5 | Odin | 358.69 MB | 2023-09-01 |
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| F721BXXU4EWL1/F721BOXM4EWL3/F721BXXU4EWL1 | Odin | 3.57 GB | 2023-12-01 |
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| F721BXXU4EWL1/F721BOXM4EWL1/F721BXXU4EWL1 | Odin | 3.57 GB | 2023-12-01 |
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| F721BXXS4DWHA/F721BOXM4DWH5/F721BXXU4DWH5 | Odin | 379.57 MB | 2023-08-01 |
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| F721BXXSAIYK3/F721BOXMAIYIF/F721BXXUAIYIF | Odin | 514.49 MB | 2025-11-01 |
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| F721BXXU3CWE8/F721BOWO3CWE8/F721BXXU3CWE6 | Odin | 2.55 GB | 2023-05-01 |
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| F721BXXU3CWE6/F721BOXM3CWE6/F721BXXU3CWE6 | Odin | 2.53 GB | 2023-05-01 |
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| F721BXXS3CWF5/F721BOWO3CWE8/F721BXXU3CWE6 | Odin | 2.53 GB | 2023-06-01 |
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| F721BXXS3CWF3/F721BOXM3CWE6/F721BXXU3CWE6 | Odin | 2.51 GB | 2023-06-01 |
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| F721BXXSAHYE2/F721BOXMAHYD9/F721BXXUAHYD9 | Odin | 434.47 MB | 2025-05-01 |
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| F721BXXSCIZE2/F721BOXMCIZE2/F721BXXSCIZE2 | Odin | 2.85 GB | 2026-05-01 |
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| F721BXXSAGYB2/F721BOXMAGYB2/F721BXXSAGYB2 | Odin | 4.21 GB | 2025-02-01 |
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| F721BXXS2CWD9/F721BOXM2CWCC/F721BXXU2CWCC | Odin | 2.55 GB | 2023-04-01 |
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| F721BXXS2CWB5/F721BOXM2CWB5/F721BXXS2CWB5 | Odin | 2.77 GB | 2023-02-01 |
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| F721BXXS2CWE2/F721BOWO2CWD1/F721BXXU2CWD1 | Odin | 2.57 GB | 2023-05-01 |
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| F721BXXU2CWD1/F721BOWO2CWD1/F721BXXU2CWD1 | Odin | 515.27 MB | 2023-04-01 |
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| F721BXXU2CWCC/F721BOXM2CWCC/F721BXXU2CWCC | Odin | 2.55 GB | 2023-03-01 |
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| F721BXXSAHYI1/F721BOXMAHYD9/F721BXXUAHYD9 | Odin | 3.22 GB | 2025-09-01 |
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| F721BXXSBIZD1/F721BOXMBIZB6/F721BXXSBIZD1 | Odin | 3.22 GB | 2026-04-01 |
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| F721BXXSBIZC1/F721BOXMBIZB6/F721BXXSBIZC1 | Odin | 407.47 MB | 2026-03-01 |
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| F721BXXSCIZE1/F721BOWOCIZE1/F721BXXSCIZE1 | Odin | 2.84 GB | 2026-05-01 |
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| F721BXXSAIZA1/F721BOXMAIYIF/F721BXXUAIYIF | Odin | 435.86 MB | 2026-01-01 |
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| F721BXXSAIYL1/F721BOXMAIYIF/F721BXXUAIYIF | Odin | 458.13 MB | 2025-12-01 |
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| F721BXXU1BVL9/F721BOXM1BVL9/F721BXXU1BVL9 | Odin | 3.13 GB | 2022-12-01 |
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| F721BXXU1BVK7/F721BOXM1BVK7/F721BXXU1BVK3 | Odin | 3.19 GB | 2022-11-01 |
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| F721BXXU1BVK3/F721BOXM1BVK3/F721BXXU1BVK3 | Odin | 3.19 GB | 2022-11-01 |
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| F721BXXS1BWA2/F721BOXM1BVL9/F721BXXU1BVL9 | Odin | 3.13 GB | 2023-01-01 |
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| F721BXXS1BVKE/F721BOXM1BVK7/F721BXXU1BVK3 | Odin | 3.19 GB | 2022-11-01 |
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| F721BXXS1AVJE/F721BOXM1AVJ5/F721BXXU1AVJ5 | Odin | 2.65 GB | 2022-10-01 |
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| F721BXXS1BVKC/F721BOXM1BVK3/F721BXXU1BVK3 | Odin | 3.19 GB | 2022-11-01 |
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| F721BXXU1CWAC/F721BOXM1CWAC/F721BXXU1CWAC | Odin | 2.77 GB | 2023-01-01 |
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| F721BXXU1AVIA/F721BOXM1AVIA/F721BXXU1AVIA | Odin | 695.19 MB | 2022-09-01 |
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| F721BXXU1AVHH/F721BOXM1AVHH/F721BXXU1AVHH | Odin | 1.48 GB | 2022-08-01 |
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| F721BXXU1AVGA/F721BOXM1AVGA/F721BXXU1AVGA | Odin | 1.49 GB | 2022-07-01 |
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| F721BXXSAHYGB/F721BOXMAHYD9/F721BXXUAHYD9 | Odin | 373.8 MB | 2025-07-01 |
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| F721BXXSAHYFD/F721BOXMAHYD9/F721BXXUAHYD9 | Odin | 401.74 MB | 2025-06-01 |
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| F721BXXSAHYER/F721BOXMAHYD9/F721BXXUAHYD9 | Odin | 420.2 MB | 2025-05-01 |
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| F721BXXUAIYIF/F721BOXMAIYIF/F721BXXUAIYIF | Odin | 522.87 MB | 2025-09-01 |
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| Network | Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| CDMA 800 / 1900 | ||
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| HSDPA 850 / 900 / 1900 / 2100 | ||
| CDMA2000 1xEV-DO | ||
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 | |
| 5G bands | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International | |
| SA/NSA/Sub6/mmWave - USA | ||
| Speed | HSPA, LTE (6CA), 5G |
| Launch | Announced | 2022, August 10 |
|---|---|---|
| Status | Available. Released 2022, August 25 |
| Body | Dimensions | Unfolded: 165.2 x 71.9 x 6.9 mm Folded: 84.9 x 71.9 x 15.9-17.1 mm |
|---|---|---|
| Weight | 187 g (6.60 oz) | |
| Build | Plastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum frame | |
| SIM | Nano-SIM + eSIM | |
| IPX8 water resistant (up to 1.5m for 30 min) Armor aluminum frame |
| Display | Type | Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak) |
|---|---|---|
| Size | 6.7 inches, 101.5 cm2 (~85.4% screen-to-body ratio) | |
| Resolution | 1080 x 2640 pixels (~426 ppi density) | |
| Cover display: Super AMOLED, 1.9 inches, 260 x 512 pixels (Gorilla Glass Victus+) |
| Platform | OS | Android 12, upgradable to Android 16, One UI 8 |
|---|---|---|
| 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, 512GB 8GB RAM | |
| UFS 3.1 |
| Main Camera | Dual | 12 MP, f/1.8, 24mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.06", 1.12µm |
|---|---|---|
| Features | LED flash, HDR, panorama | |
| Video | 4K@30/60fps, 1080p@60/240fps, HDR10+ |
| Selfie camera | Single | 10 MP, f/2.4, 26mm (wide), 1/3.0", 1.22µm |
|---|---|---|
| Features | HDR | |
| Video | 4K@30fps |
| Sound | Loudspeaker | Yes, with stereo speakers |
|---|---|---|
| 3.5mm jack | No | |
| High-bitrate audio support |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.2, A2DP, LE | |
| Positioning | GPS, GLONASS, GALILEO, BDS | |
| NFC | Yes | |
| Radio | No | |
| USB | USB Type-C 2.0, OTG |
| Features | Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer |
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| Battery | Type | Li-Po 3700 mAh |
|---|---|---|
| Charging | 25W wired, 50% in 30 min 15W wireless 4.5W reverse wireless |
| Misc | Colors | Bora Purple, Graphite, Pink Gold, Blue, Yellow, White, Navy, Khaki, Red |
|---|---|---|
| Models | SM-F721B, SM-F721B/DS, SM-F721N, SM-F721U, SM-F721U1, SM-F721W, SM-F7210 | |
| SAR | 1.02 W/kg (head) 0.94 W/kg (body) | |
| SAR EU | 1.15 W/kg (head) 1.20 W/kg (body) | |
| Price | $ 210.43 / € 343.95 / £ 229.00 / ₹ 39,999 |
| Our Tests | Performance | AnTuTu: 685754 (v8) | 800001 (v9) GeekBench: 3913 (v5.1) GFXBench: 74fps (ES 3.1 onscreen) |
|---|---|---|
| Display | 919 nits max brightness (measured) | |
| Camera | Photo / Video | |
| Loudspeaker | -27.5 LUFS (Good) | |
| Battery (old) | Endurance rating 75h | |
A: Yes — official firmware from the manufacturer is generally safe when you match your device's exact model number and region. Flashing the wrong region or modified firmware can cause issues.
A: Samsung Galaxy Z Flip4 firmware is flashed using Odin. See the step-by-step guide above for the full procedure.
A: Some devices allow downgrading, others have anti-rollback protection that blocks it. Check the version-specific notes on each ROM page, or your model's community forum, before attempting a downgrade.
A: First, verify the firmware matches your exact model code (e.g. SM-S938B for Samsung, or the CPH-number for OPPO). Reinstall the manufacturer's USB drivers, use a rear USB 2.0 port directly on your PC, and retry. The troubleshooting box above the FAQ covers the most common failure modes.
