Samsung GALAXY A3 (SM-A300YZ) is a samsung device (codename: sm-a300yz). FirmwareMirror hosts 6 verified firmware builds, covering: CRM, CHO, PCW, CPA, PBS. Available as official firmware. Last updated: 2026. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung GALAXY A3 (SM-A300YZ) (sm-a300yz). All firmware files include MD5 hash verification and are available for direct download.
| Version | Method | Size | Release Date | MD5 Hash | Download |
|---|---|---|---|---|---|
| A300YZUJS1BQB3/A300YZTFG1BPF1/A300YZUJS1BQA1 | Odin | 274.59 MB | N/A |
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| A300YZUJS1BRH2/A300YZUUB1BRH2/A300YZUJS1BTJ1 | Odin | 321.26 MB | N/A |
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| A300YZUJU1AOJ2/A300YZTFG1AOC1/A300YZUJU1AOC1 | Odin | 649.13 MB | N/A |
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| A300YZUJU1AOJ1/A300YZUWA1AOA1/A300YZUJU1AOA6 | Odin | 416.57 MB | N/A |
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| A300YZZTS1BRH1/A300YZZZT1BRH1/A300YZZTU1BTI2 | Odin | 1.22 GB | N/A |
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| A300YZUJS1BRH1/A300YZUUB1BRH1/A300YZUJS1BTJ1 | Odin | 1.23 GB | N/A |
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Versions: A300F with 1 GB RAM; A300FU with 1.5 GB RAM
| Network | Technology | GSM / HSPA / LTE |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 - all versions | |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 - A300F, A300FU, A300G, A300HQ, A300M, A300YZ | |
| 4G bands | 1, 3, 5, 7, 8, 20 - A300F, A300FU | |
| 1, 3, 5, 7, 8, 20, 40 - A300G | ||
| 1, 2, 4, 5, 7, 17 - A300M | ||
| 3, 7, 8, 28 - A300YZ | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Launch | Announced | 2014, October. Released 2014, December |
|---|---|---|
| Status | Discontinued |
| Body | Dimensions | 130.1 x 65.5 x 6.9 mm (5.12 x 2.58 x 0.27 in) |
|---|---|---|
| Weight | 110.3 g (3.88 oz) | |
| Build | Glass front (Gorilla Glass 4), plastic back, aluminum frame | |
| SIM | Nano-SIM |
| Display | Type | Super AMOLED |
|---|---|---|
| Size | 4.5 inches, 55.8 cm2 (~65.5% screen-to-body ratio) | |
| Resolution | 540 x 960 pixels, 16:9 ratio (~245 ppi density) | |
| Protection | Corning Gorilla Glass 4 |
| Platform | OS | Android 4.4.4 (KitKat), upgradable to 6.0.1 (Marshmallow) |
|---|---|---|
| Chipset | Qualcomm MSM8916 Snapdragon 410 (28 nm) | |
| CPU | Quad-core 1.2 GHz Cortex-A53 | |
| GPU | Adreno 306 |
| Memory | Card slot | microSDXC (dedicated slot) |
|---|---|---|
| Internal | 16GB 1GB RAM, 16GB 1.5GB RAM | |
| eMMC 4.5 |
| Main Camera | Single | 8 MP, f/2.4, 31mm (standard), AF |
|---|---|---|
| Features | LED flash, panorama | |
| Video | 1080p@30fps |
| Selfie camera | Single | 5 MP, f/2.2, 23mm (wide) |
|---|---|---|
| Video |
| Sound | Loudspeaker | Yes |
|---|---|---|
| 3.5mm jack | Yes |
| Comms | WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
|---|---|---|
| Bluetooth | 4.0, A2DP, EDR, LE | |
| Positioning | GPS, GLONASS, BDS | |
| NFC | Yes (LTE model only) | |
| Radio | FM radio, recording | |
| USB | microUSB 2.0 |
| Features | Sensors | Accelerometer, proximity, compass |
|---|---|---|
| ANT+ |
| Battery | Type | Li-Ion 1900 mAh, non-removable |
|---|---|---|
| Talk time | Up to 12 h (3G) | |
| Music play | Up to 60 h |
| Misc | Colors | Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light Blue, Champagne Gold |
|---|---|---|
| Models | SM-A300F, SM-A300FU, SM-A300G, SM-A300HQ, SM-A300M, SM-A300XU, SM-A300XZ, SM-A300Y, SM-A300YZ, SM-A300H | |
| SAR EU | 0.24 W/kg (head) 0.30 W/kg (body) | |
| Price | About 190 EUR |
| Our Tests | Performance | Basemark X: 1895 |
|---|---|---|
| Camera | Photo / Video | |
| Loudspeaker | Voice 65dB / Noise 66dB / Ring 76dB | |
| Battery (old) | Endurance rating 65h | |
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 A3 (SM-A300YZ) 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.
