Samsung Galaxy A20 (SM-A205G) is a samsung device (codename: sm-a205g). FirmwareMirror hosts 42 verified firmware builds, covering: CGU, ALE, BVT, UFN, CDR. Available as official firmware. Last updated: April 2023. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy A20 (SM-A205G) (sm-a205g). 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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| A205GUBU9CUF4/A205GOWO9CUF3/A205GNDXU9CUE8 | Odin | 490.35 MB | 2021-06-01 |
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| A205GUBU9CUF4/A205GOWE9CUF2/A205GNDXU9CUE8 | Odin | 646.85 MB | 2021-06-01 |
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| A205GUBS9BUC3/A205GOWA9BUC3/A205GNDXS9BUC3 | Odin | 506.46 MB | 2021-03-01 |
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| A205GUBS9BUC3/A205GOWM9BUC2/A205GNDXS9BUC3 | Odin | 458.94 MB | 2021-03-01 |
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| A205GUBU9CUF2/A205GOWE9CUF2/A205GNDXU9CUE8 | Odin | 646.81 MB | 2021-06-01 |
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| A205GUBU9BUD2/A205GOWE9BUD1/A205GNDXU9BUC8 | Odin | 1.65 GB | 2021-04-01 |
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| A205GUBS9BUC2/A205GOWM9BUC1/A205GNDXS9BUC4 | Odin | 507.18 MB | 2021-03-01 |
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| A205GUBS9BUC2/A205GOWT9BUC1/A205GNDXS9BUC4 | Odin | 494.98 MB | 2021-03-01 |
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| A205GUBS9BUC1/A205GOWE9BUC1/A205GNDXS9BUC1 | Odin | 595.17 MB | 2021-03-01 |
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| A205GUBS8BTL3/A205GOWE8BTL2/A205GNDXS8BTL3 | Odin | 614.49 MB | N/A |
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| A205GUBS8BUA2/A205GOWM8BUA2/A205GNDXS8BUA2 | Odin | 473.46 MB | 2021-01-01 |
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| A205GUBS8BUA2/A205GOWA8BUA2/A205GNDXS8BUA2 | Odin | 520.99 MB | 2021-01-01 |
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| A205GUBS8BTL2/A205GOWM8BTL1/A205GNDXS8BTL2 | Odin | 522.39 MB | N/A |
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| A205GUBS8BTL2/A205GOWT8BTL1/A205GNDXS8BTL2 | Odin | 510.19 MB | N/A |
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| A205GUBS8BUA1/A205GOWA8BUA1/A205GNDXS8BUA1 | Odin | 593.78 MB | 2021-01-01 |
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| A205GUBS7BTI3/A205GOWM7BTI2/A205GNDXS7BTI3 | Odin | 588.71 MB | N/A |
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| A205GUBS7BTI2/A205GOWT7BTI2/A205GNDXS7BTI2 | Odin | 514.94 MB | N/A |
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| A205GUBS7BTI2/A205GOWM7BTJ2/A205GNDXS7BTI2 | Odin | 527.14 MB | N/A |
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| A205GUBU7BTJ1/A205GOWM7BTJ3/A205GNDXU7BTJ3 | Odin | 467.25 MB | N/A |
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| A205GUBS7BTK1/A205GOWA7BTK2/A205GNDXS7BTK1 | Odin | 599.29 MB | N/A |
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| A205GUBU7BTJ1/A205GOWA7BTJ1/A205GNDXU7BTJ3 | Odin | 514.77 MB | N/A |
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| A205GUBS7BTI1/A205GOWE7BTI1/A205GNDXS7BTI1 | Odin | 615.33 MB | N/A |
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| A205GUBS7BTL1/A205GOWA7BTJ1/A205GNDXS7BTL1 | Odin | 512.9 MB | N/A |
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| A205GUBUBCWD6/A205GOWOBCWD6/A205GNDXUBCWE1 | Odin | 470.62 MB | 2023-04-01 |
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| A205GUBU6BTG4/A205GOWE6BTG4/A205GNDXU6BTG4 | Odin | 616.21 MB | N/A |
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| A205GUBU6BTH2/A205GOWM6BTH2/A205GNDXU6BTH2 | Odin | 527.71 MB | N/A |
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| A205GUBU6BTH2/A205GOWT6BTH1/A205GNDXU6BTH2 | Odin | 515.51 MB | N/A |
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| A205GUBS6BTG1/A205GOWM6BTG3/A205GNDXS6BTG1 | Odin | 410.28 MB | N/A |
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| A205GUBU5BTD2/A205GOWE5BTD1/A205GNDXU5BTD1 | Odin | 325.76 MB | N/A |
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| A205GUBSACVG4/A205GOWOACUI1/A205GNDXSACVG4 | Odin | 357.6 MB | 2022-07-01 |
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| A205GUBUBCVJ3/A205GOWEBCVJ3/A205GNDXUBCVJ1 | Odin | 160.98 MB | 2022-10-01 |
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| A205GUBSACVG2/A205GOWOACVA1/A205GNDXSACVG2 | Odin | 325.25 MB | 2022-07-01 |
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| A205GUBSACVF2/A205GOWAACUI1/A205GNDXSACVF2 | Odin | 484.58 MB | 2022-06-01 |
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| A205GUBSBCWC1/A205GOWEBCWC3/A205GNDXSBCWC1 | Odin | 1.06 GB | 2023-03-01 |
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| A205GUBUACUI1/A205GOWEACUI1/A205GNDXUACUI5 | Odin | 421.3 MB | 2021-09-01 |
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| A205GUBSACVC1/A205GOWEACUI1/A205GNDXSACVC2 | Odin | 481.99 MB | 2022-03-01 |
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| A205GUBUBCWA1/A205GOWABCWA1/A205GNDXUBCWA1 | Odin | 229.49 MB | 2023-01-01 |
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| A205GUBSACVF1/A205GOWAACUI1/A205GNDXSACVF1 | Odin | 445.86 MB | 2022-06-01 |
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| A205GUBSACVB1/A205GOWEACVB1/A205GNDXSACVB1 | Odin | 371.4 MB | 2022-02-01 |
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| A205GUBUACVA1/A205GOWOACVA1/A205GNDXUACVA1 | Odin | 550.93 MB | 2022-01-01 |
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| A205GUBSACUL1/A205GOWAACUI1/A205GNDXSACUL1 | Odin | 609.01 MB | 2021-12-01 |
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| A205GUBSACUL1/A205GOWOACUI1/A205GNDXSACUL1 | Odin | 433 MB | 2021-12-01 |
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Versions: SM-A205F/DS, SM-A205FN/DS (Global); SM-A205U (USA); SM-A205GN/DS (Philippines, Hong Kong, Taiwan), SM-A205YN (Australia, New Zealand), SM-A205G/DS (LATAM/Brazil), SM-A205W (Canada)
| Network | Technology | GSM / HSPA / LTE |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 | |
| HSDPA 850 / 1700(AWS) / 1900 / 2100 | ||
| 4G bands | 1, 3, 5, 7, 8, 20, 38, 40, 41 | |
| 1, 2, 3, 4, 5, 7, 12, 13, 17, 20, 28, 38, 40, 41, 66 | ||
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71 - SM-A205U | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Launch | Announced | 2019, March 19. Released 2019, April 05 |
|---|---|---|
| Status | Discontinued |
| Body | Dimensions | 158.4 x 74.7 x 7.8 mm (6.24 x 2.94 x 0.31 in) |
|---|---|---|
| Weight | 169 g (5.96 oz) | |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame | |
| SIM | · Nano-SIM · Nano-SIM + Nano-SIM |
| Display | Type | Super AMOLED |
|---|---|---|
| Size | 6.4 inches, 100.5 cm2 (~85.0% screen-to-body ratio) | |
| Resolution | 720 x 1560 pixels, 19.5:9 ratio (~268 ppi density) | |
| Protection | Corning Gorilla Glass 3 |
| Platform | OS | Android 9.0 (Pie), upgradable to Android 11, One UI 3.1 |
|---|---|---|
| Chipset | Exynos 7884 (14 nm) | |
| CPU | Octa-core (2x1.6 GHz Cortex-A73 & 6x1.35 GHz Cortex-A53) | |
| GPU | Mali-G71 MP2 |
| Memory | Card slot | microSDXC (dedicated slot) |
|---|---|---|
| Internal | 32GB 3GB RAM | |
| eMMC 5.1 |
| Main Camera | Dual | 13 MP, f/1.9, 28mm (wide), AF 5 MP, f/2.2, 12mm (ultrawide) |
|---|---|---|
| Features | LED flash, panorama, HDR | |
| Video | 1080p@30fps |
| Selfie camera | Single | 8 MP, f/2.0 |
|---|---|---|
| Video | 1080p@30fps |
| Sound | Loudspeaker | Yes |
|---|---|---|
| 3.5mm jack | Yes |
| Comms | WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | |
| Positioning | GPS, GLONASS, BDS | |
| NFC | Yes (market/region dependent) | |
| Radio | FM radio | |
| USB | USB Type-C 2.0, OTG |
| Features | Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
|---|
| Battery | Type | Li-Po 4000 mAh, non-removable |
|---|---|---|
| Charging | 15W wired |
| Misc | Colors | Black, Deep Blue, Red, Coral Orange, Gold |
|---|---|---|
| Models | SM-A205F, SM-A205FN, SM-A205GN, SM-A205YN, SM-A205G, SM-A205W, SM-A205U, SM-A205S, SM-S205DL, SM-A205U1 | |
| SAR | 1.09 W/kg (head) 0.60 W/kg (body) | |
| SAR EU | 0.23 W/kg (head) 1.38 W/kg (body) | |
| Price | About 100 EUR |
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 A20 (SM-A205G) 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.
