Samsung Galaxy A40 (Korea) is a samsung device (codename: sm-a405fn). FirmwareMirror hosts 32 verified firmware builds, covering: 3IE, DBT, BHT, BTU. Available as official firmware. Last updated: March 2023. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy A40 (Korea) (sm-a405fn). 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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| A405FNXXS4CWB5/A405FNCKH4CVK1/A405FNXXU4CVK1 | Odin | 170.46 MB | 2023-02-01 |
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| A405FNXXS4CWB5/A405FNOXM4CVK1/A405FNXXU4CVK1 | Odin | 173.04 MB | 2023-02-01 |
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| A405FNXXU4CWC3/A405FNCKH4CWC4/A405FNXXU4CWC3 | Odin | 926.87 MB | 2023-03-01 |
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| A405FNXXU4CWC3/A405FNOXM4CWC3/A405FNXXU4CWC3 | Odin | 185.81 MB | 2023-03-01 |
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| A405FNXXS4CUH2/A405FNOXM4CUH3/A405FNXXS4CUH2 | Odin | 854.51 MB | 2021-08-01 |
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| A405FNXXU4CUJ2/A405FNOXM4CUJ2/A405FNXXU4CUJ2 | Odin | 339.23 MB | 2021-10-01 |
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| A405FNXXS4CUH2/A405FNCKH4CUH2/A405FNXXS4CUH2 | Odin | 846.71 MB | 2021-08-01 |
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| A405FNXXU4CVG2/A405FNOXM4CVG2/A405FNXXU4CVF1 | Odin | 241.94 MB | 2022-07-01 |
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| A405FNXXU4CVA2/A405FNOXM4CVA2/A405FNXXU4CUL1 | Odin | 328 MB | 2022-01-01 |
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| A405FNXXU4CUL2/A405FNOXM4CUL2/A405FNXXU4CUL1 | Odin | 329.96 MB | 2021-12-01 |
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| A405FNXXU4CUJ2/A405FNCKH4CUK1/A405FNXXU4CUJ2 | Odin | 341.16 MB | 2021-10-01 |
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| A405FNXXU4CVG2/A405FNCKH4CVG1/A405FNXXU4CVF1 | Odin | 239.37 MB | 2022-07-01 |
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| A405FNXXU4CUL2/A405FNCKH4CVA1/A405FNXXU4CUL1 | Odin | 331.88 MB | 2021-12-01 |
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| A405FNXXU4CVK1/A405FNOXM4CVK1/A405FNXXU4CVK1 | Odin | 177.64 MB | 2022-11-01 |
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| A405FNXXU4CVK1/A405FNCKH4CVK1/A405FNXXU4CVK1 | Odin | 175.07 MB | 2022-11-01 |
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| A405FNXXS4CVH1/A405FNCKH4CVG1/A405FNXXS4CVH1 | Odin | 235.26 MB | 2022-08-01 |
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| A405FNXXS4CVH1/A405FNOXM4CVH1/A405FNXXS4CVH1 | Odin | 237.84 MB | 2022-08-01 |
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| A405FNXXU4CVF1/A405FNOXM4CVF1/A405FNXXU4CVF1 | Odin | 252.42 MB | 2022-06-01 |
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| A405FNXXU4CVF1/A405FNCKH4CVF1/A405FNXXU4CVF1 | Odin | 249.84 MB | 2022-06-01 |
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| A405FNXXU4CVD1/A405FNOXM4CVD1/A405FNXXU4CVC1 | Odin | 282.86 MB | 2022-04-01 |
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| A405FNXXU4CVD1/A405FNCKH4CVD1/A405FNXXU4CVC1 | Odin | 284.8 MB | 2022-04-01 |
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| A405FNXXU3CUC4/A405FNOXM3CUC4/A405FNXXU3CUC2 | Odin | 926.93 MB | 2021-03-01 |
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| A405FNXXU3BTK4/A405FNOXM3BTK4/A405FNXXU3BTK2 | Odin | 2.01 GB | N/A |
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| A405FNXXU3BTK4/A405FNCKH3BTK4/A405FNXXU3BTK2 | Odin | 1.88 GB | N/A |
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| A405FNXXU3BTK4/A405FNBHT3BTK4/A405FNXXU3BTK2 | Odin | 1.82 GB | N/A |
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| A405FNXXU3CUC4/A405FNCKH3CUC3/A405FNXXU3CUC2 | Odin | 917.52 MB | 2021-03-01 |
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| A405FNXXU3CUD3/A405FNOXM3CUD4/A405FNXXU3CUC2 | Odin | 926.87 MB | 2021-04-01 |
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| A405FNXXU3CUD3/A405FNCKH3CUD3/A405FNXXU3CUC2 | Odin | 917.5 MB | 2021-04-01 |
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| A405FNXXU3CUC2/A405FNOXM3CUC2/A405FNXXU3CUC2 | Odin | 926.95 MB | 2021-03-01 |
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| A405FNXXU3CUC2/A405FNCKH3CUC2/A405FNXXU3CUC2 | Odin | 917.54 MB | 2021-03-01 |
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| A405FNXXU3CUF2/A405FNOXM3CUF2/A405FNXXU3CUE1 | Odin | 865.91 MB | 2021-06-01 |
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| A405FNXXU3CUF2/A405FNCKH3CUF2/A405FNXXU3CUE1 | Odin | 858.06 MB | 2021-06-01 |
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Versions: SM-A405FN/DS (Global); SM-A405F/DS; SM-A405FM/DS (Russia)
| Network | Technology | GSM / HSPA / LTE |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G bands | 1, 3, 5, 7, 8, 20, 38, 40, 41 | |
| Speed | HSPA 42.2/5.76 Mbps, LTE (2CA) Cat12 600/150 Mbps |
| Launch | Announced | 2019, March 19. Released 2019, April |
|---|---|---|
| Status | Discontinued |
| Body | Dimensions | 144.4 x 69.2 x 7.9 mm (5.69 x 2.72 x 0.31 in) |
|---|---|---|
| Weight | 140 g (4.94 oz) | |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame | |
| SIM | · Nano-SIM · Nano-SIM + Nano-SIM |
| Display | Type | Super AMOLED |
|---|---|---|
| Size | 5.9 inches, 85.5 cm2 (~85.5% screen-to-body ratio) | |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~437 ppi density) | |
| Protection | Corning Gorilla Glass 3 |
| Platform | OS | Android 9.0 (Pie), upgradable to Android 11 |
|---|---|---|
| Chipset | Exynos 7904 (14 nm) | |
| CPU | Octa-core (2x1.77 GHz Cortex-A73 & 6x1.59 GHz Cortex-A53) | |
| GPU | Mali-G71 MP2 |
| Memory | Card slot | microSDXC (dedicated slot) |
|---|---|---|
| Internal | 64GB 4GB RAM, 128GB 4GB RAM | |
| eMMC 5.1 |
| Main Camera | Dual | 16 MP, f/1.7, 26mm (wide), PDAF 5 MP, f/2.2, 13mm (ultrawide) |
|---|---|---|
| Features | LED flash, panorama, HDR | |
| Video | 1080p@30fps |
| Selfie camera | Single | 25 MP, f/2.0, 25mm (wide), 1/2.8", 0.9µm |
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| Video | 1080p@30fps |
| Sound | Loudspeaker | Yes |
|---|---|---|
| 3.5mm jack | Yes |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | |
| Positioning | GPS, GLONASS, GALILEO, BDS | |
| NFC | Yes | |
| Radio | FM radio | |
| USB | USB Type-C 2.0 |
| Features | Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
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| ANT+ |
| Battery | Type | Li-Po 3100 mAh, non-removable |
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| Charging | 15W wired |
| Misc | Colors | Black, White, Blue, Coral |
|---|---|---|
| Models | SM-A405F, SM-A405FN, SM-A405FM, SM-A405S | |
| SAR EU | 0.49 W/kg (head) 1.34 W/kg (body) | |
| Price | About 260 EUR |
| Our Tests | Performance | AnTuTu: 106388 (v7) GeekBench: 4112 (v4.4) GFXBench: 4.6fps (ES 3.1 onscreen) |
|---|---|---|
| Display | 548 nits max brightness (measured) | |
| Camera | Photo / Video | |
| Loudspeaker | Voice 66dB / Noise 68dB / Ring 73dB | |
| Audio quality | Noise -91.0dB / Crosstalk -85.9dB | |
| Battery (old) | Endurance rating 73h | |
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 A40 (Korea) 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.
