Samsung Galaxy S23 Ultra (Canada) is a samsung device (codename: sm-s918w). FirmwareMirror hosts 35 verified firmware builds, covering: BMC, XAC. Available as official firmware. Last updated: March 2026. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy S23 Ultra (Canada) (sm-s918w). 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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| S918WVLS7EZB6/S918WOYV7EZB6/S918WVLS7EZB6 | Odin | 229.3 MB | 2026-02-01 |
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| S918WVLS7EZC1/S918WOYV7EZC1/S918WVLS7EZC1 | Odin | 422.88 MB | 2026-03-01 |
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| S918WVLS7EZCI/S918WOYV7EZCI/S918WVLS7EZCI | Odin | 3.3 GB | 2026-03-01 |
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| S918WVLU6DYD9/S918WOYV6DYD9/S918WVLU6DYD9 | Odin | 430.78 MB | 2025-04-01 |
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| S918WVLS6EYJ5/S918WOYV6EYJ5/S918WVLS6EYJ5 | Odin | 416.05 MB | 2025-10-01 |
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| S918WVLU6EYI5/S918WOYV6EYI5/S918WVLU6EYI5 | Odin | 416.58 MB | 2025-09-01 |
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| S918WVLS6EYK3/S918WOYV6EYK3/S918WVLS6EYK3 | Odin | 472.39 MB | 2025-11-01 |
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| S918WVLS6CYB3/S918WOYV6CYB3/S918WVLS6CYB3 | Odin | 4.52 GB | 2025-02-01 |
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| S918WVLS6EZA1/S918WOYV6EZA1/S918WVLS6EZA1 | Odin | 423.98 MB | 2026-01-01 |
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| S918WVLS6DYH1/S918WOYV6DYH1/S918WVLS6DYH1 | Odin | 2.98 GB | 2025-08-01 |
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| S918WVLS6DYG1/S918WOYV6DYG1/S918WVLS6DYG1 | Odin | 427.14 MB | 2025-07-01 |
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| S918WVLS6DYF1/S918WOYV6DYF1/S918WVLS6DYF1 | Odin | 422.53 MB | 2025-06-01 |
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| S918WVLS6DYE1/S918WOYV6DYE1/S918WVLS6DYE1 | Odin | 426.72 MB | 2025-05-01 |
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| S918WVLS5CXL7/S918WOYV5CXL7/S918WVLS5CXL7 | Odin | 426.82 MB | 2024-12-01 |
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| S918WVLU5CYB1/S918WOYV5CYB1/S918WVLU5CYB1 | Odin | 406.81 MB | 2025-02-01 |
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| S918WVLU5CXJR/S918WOYV5CXJR/S918WVLU5CXJR | Odin | 437.81 MB | 2024-10-01 |
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| S918WVLS4CXE9/S918WOYV4CXE9/S918WVLS4CXE9 | Odin | 2.42 GB | 2024-05-01 |
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| S918WVLU4CXI5/S918WOYV4CXI5/S918WVLU4CXI5 | Odin | 517.13 MB | 2024-09-01 |
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| S918WVLS3CXD7/S918WOYV3CXD7/S918WVLS3CXD7 | Odin | 2.34 GB | 2024-04-01 |
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| S918WVLS3CXE3/S918WOYV3CXE3/S918WVLS3CXE3 | Odin | 2.34 GB | 2024-05-01 |
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| S918WVLS2BWL7/S918WOYV2BWL7/S918WVLS2BWL7 | Odin | 3.31 GB | 2023-12-01 |
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| S918WVLS2CXCN/S918WOYV2CXCN/S918WVLS2CXCN | Odin | 2.34 GB | 2024-03-01 |
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| S918WVLU2CXCI/S918WOYV2CXCI/S918WVLU2CXCI | Odin | 2.34 GB | 2024-03-01 |
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| S918WVLS2BXAD/S918WOYV2BXAD/S918WVLS2BXAD | Odin | 3.3 GB | 2024-01-01 |
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| S918WVLS2BWKA/S918WOYV2BWKA/S918WVLS2BWKA | Odin | 3.31 GB | 2023-11-01 |
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| S918WVLU1AWC8/S918WOYV1AWC8/S918WVLU1AWC8 | Odin | 2.46 GB | 2023-03-01 |
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| S918WVLU1AWA6/S918WOYV1AWA6/S918WVLU1AWA6 | Odin | 2.62 GB | 2023-01-01 |
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| S918WVLU1BWK4/S918WOYV1BWK4/S918WVLU1BWK4 | Odin | 3.31 GB | 2023-11-01 |
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| S918WVLU1AWF3/S918WOYV1AWF3/S918WVLU1AWF3 | Odin | 1.2 GB | 2023-06-01 |
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| S918WVLS1AWHF/S918WOYV1AWHF/S918WVLS1AWHF | Odin | 2.99 GB | 2023-08-01 |
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| S918WVLU1AWGH/S918WOYV1AWGH/S918WVLU1AWGH | Odin | 389.96 MB | 2023-07-01 |
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| S918WVLS1AWFD/S918WOYV1AWFD/S918WVLS1AWFD | Odin | 1.18 GB | 2023-06-01 |
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| S918WVLS1AWCA/S918WOYV1AWCA/S918WVLS1AWCA | Odin | 2.45 GB | 2023-03-01 |
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| S918WVLU1AWBE/S918WOYV1AWBE/S918WVLU1AWBE | Odin | 2.58 GB | 2023-02-01 |
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| S918WVLU1AVKT/S918WOYV1AVKT/S918WVLU1AVKT | Odin | 3.29 GB | 2022-11-01 |
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| Network | Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | |
| CDMA 800 / 1900 & TD-SCDMA | ||
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 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 - International | |
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71 - USA | ||
| 5G bands | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International | |
| 1, 7, 28, 41, 66, 71, 78, 258, 260, 261 SA/NSA/Sub6/mmWave - USA | ||
| Speed | HSPA, LTE (CA), 5G |
| Launch | Announced | 2023, February 01 |
|---|---|---|
| Status | Available. Released 2023, February 17 |
| Body | Dimensions | 163.4 x 78.1 x 8.9 mm (6.43 x 3.07 x 0.35 in) |
|---|---|---|
| Weight | 234 g (8.25 oz) | |
| Build | Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame | |
| SIM | · Nano-SIM + eSIM · Nano-SIM + Nano-SIM + eSIM (max 2 at a time) | |
| IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Armor aluminum frame Stylus (Bluetooth integration, accelerometer, gyro) |
| Display | Type | Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak) |
|---|---|---|
| Size | 6.8 inches, 114.7 cm2 (~89.9% screen-to-body ratio) | |
| Resolution | 1440 x 3088 pixels, 19.3:9 ratio (~500 ppi density) | |
| Protection | Corning Gorilla Glass Victus 2 |
| Platform | OS | Android 13, up to 4 major Android upgrades, One UI 8.5 |
|---|---|---|
| Chipset | Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm) | |
| CPU | Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) | |
| GPU | Adreno 740 |
| Memory | Card slot | No |
|---|---|---|
| Internal | 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM | |
| UFS 4.0 |
| Main Camera | Quad | 200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP, f/2.4, 70mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 230mm (periscope telephoto), 1/3.52", 1.12µm, PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video |
|---|---|---|
| Features | Laser AF, LED flash, auto-HDR, panorama | |
| Video | 8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS |
| Selfie camera | Single | 12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF |
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| Features | HDR, HDR10+ | |
| Video | 4K@30/60fps, 1080p@30fps |
| Sound | Loudspeaker | Yes, with stereo speakers |
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| 3.5mm jack | No | |
| High-bitrate audio support |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.3, A2DP, LE | |
| Positioning | GPS, GALILEO, GLONASS, BDS, QZSS | |
| NFC | Yes | |
| Radio | No | |
| USB | USB Type-C 3.2, OTG |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
|---|---|---|
| Samsung DeX, Samsung Wireless DeX (desktop experience support) Ultra Wideband (UWB) support |
| Battery | Type | Li-Ion 5000 mAh |
|---|---|---|
| Charging | 45W wired, PD3.0, 65% in 30 min 15W wireless (Qi) 4.5W reverse wireless |
| Misc | Colors | Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition |
|---|---|---|
| Models | SM-S918B, SM-S918B/DS, SM-S918U, SM-S918U1, SM-S918W, SM-S918N, SM-S9180, SM-S918E, SM-S918E/DS | |
| SAR | 1.12 W/kg (head) 0.92 W/kg (body) | |
| SAR EU | 0.96 W/kg (head) 1.40 W/kg (body) | |
| Price | $ 449.95 / € 528.02 / £ 349.99 / ₹ 99,999 |
| Our Tests | Performance | AnTuTu: 1241531 (v9) GeekBench: 4927 (v5.1) 3DMark: 3790 (Wild Life Extreme) |
|---|---|---|
| Display | 1274 nits max brightness (measured) | |
| Camera | Photo / Video | |
| Loudspeaker | -25.6 LUFS (Very good) | |
| Battery | Active use score 13:24h | |
| Battery (old) | Endurance rating 126h | |
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 S23 Ultra (Canada) 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.
