Samsung Galaxy Note20 is a samsung device (codename: sm-n981b). FirmwareMirror hosts 87 verified firmware builds, covering: 3IE, AMO, XSA, ZTO, OPS. Available as official firmware. Last updated: August 2025. All files MD5-verified. Free, no registration.
Find and download official Stock ROM for Samsung Galaxy Note20 (sm-n981b). 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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| N981BXXSBHXE9/N981BOXMBHXE9/N981BXXSBHXE9 | Odin | 307.54 MB | 2024-05-01 |
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| N981BXXS9HXA1/N981BOXM9HWL1/N981BXXS9HWL1 | Odin | 323.16 MB | 2024-01-01 |
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| N981BXXS9HWL1/N981BOXM9HWL1/N981BXXS9HWL1 | Odin | 323.85 MB | 2023-12-01 |
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| N981BXXU8HWH9/N981BOXM8HWH9/N981BXXU8HWH9 | Odin | 335.92 MB | 2023-08-01 |
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| N981BXXS8HWH4/N981BOWO8HWH4/N981BXXS8HWH4 | Odin | 1.13 GB | 2023-08-01 |
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| N981BXXS8HWH3/N981BOXM8HWH3/N981BXXS8HWH3 | Odin | 1.21 GB | 2023-08-01 |
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| N981BXXS8HWJ1/N981BOXM8HWH9/N981BXXU8HWH9 | Odin | 333.24 MB | 2023-10-01 |
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| N981BXXS8HWI1/N981BOXM8HWH9/N981BXXU8HWH9 | Odin | 334.57 MB | 2023-09-01 |
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| N981BXXS8HWK1/N981BOXM8HWH9/N981BXXS8HWK1 | Odin | 330.61 MB | 2023-11-01 |
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| N981BXXU7HWF3/N981BOWO7HWF4/N981BXXU7HWF2 | Odin | 1.13 GB | 2023-06-01 |
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| N981BXXS7HWG2/N981BOWO7HWF4/N981BXXU7HWF2 | Odin | 1.12 GB | 2023-07-01 |
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| N981BXXU7HWF2/N981BOXM7HWF2/N981BXXU7HWF2 | Odin | 1.22 GB | 2023-06-01 |
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| N981BXXS7HWG1/N981BOXM7HWF2/N981BXXU7HWF2 | Odin | 1.21 GB | 2023-07-01 |
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| N981BXXU6HWD6/N981BOWO6HWD6/N981BXXU6HWD6 | Odin | 369 MB | 2023-04-01 |
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| N981BXXS6HWE2/N981BOWO6HWD6/N981BXXU6HWD6 | Odin | 1.16 GB | 2023-05-01 |
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| N981BXXS6HWE1/N981BOXM6HWCE/N981BXXU6HWD5 | Odin | 1.24 GB | 2023-05-01 |
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| N981BXXU6HWCE/N981BOXM6HWCE/N981BXXU6HWD5 | Odin | 1.24 GB | 2023-03-01 |
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| N981BXXS5GVK9/N981BOXM5GVJE/N981BXXU5GVJE | Odin | 1.95 GB | 2022-11-01 |
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| N981BXXS5FVH8/N981BOWO5FVH8/N981BXXS5FVH8 | Odin | 205.64 MB | 2022-08-01 |
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| N981BXXS5GWA8/N981BOWO5GVL2/N981BXXU5GVL3 | Odin | 1.53 GB | 2023-01-01 |
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| N981BXXS5FVH7/N981BOXM5FVH7/N981BXXS5FVH7 | Odin | 191.44 MB | 2022-08-01 |
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| N981BXXS5GWA7/N981BOXM5GVJE/N981BXXU5GVJE | Odin | 1.95 GB | 2023-01-01 |
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| N981BXXU5GWA5/N981BOXM5GWA5/N981BXXU5GVL2 | Odin | 1.97 GB | 2023-01-01 |
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| N981BXXS5GWB5/N981BOWO5GVL2/N981BXXU5GVL3 | Odin | 1.53 GB | 2023-02-01 |
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| N981BXXS5FVI4/N981BOXM5FVH7/N981BXXS5FVH7 | Odin | 2.05 GB | 2022-09-01 |
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| N981BXXU5GVL4/N981BOWO5GVL2/N981BXXU5GVL3 | Odin | 1.27 GB | 2022-12-01 |
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| N981BXXS5GWB3/N981BOXM5GWA5/N981BXXU5GVL2 | Odin | 1.95 GB | 2023-02-01 |
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| N981BXXU5GVL2/N981BOXM5GVL2/N981BXXU5GVL2 | Odin | 1.95 GB | 2022-12-01 |
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| N981BXXS5HWC1/N981BOXM5HWAC/N981BXXU5HWB2 | Odin | 1.69 GB | 2023-03-01 |
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| N981BXXS5HWC1/N981BOXM5HWAC/N981BXXU5HWAC | Odin | 1.69 GB | 2023-03-01 |
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| N981BXXS5GWB1/N981BOXM5GVJE/N981BXXU5GVJE | Odin | 1.94 GB | 2023-02-01 |
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| N981BXXS5GVK1/N981BOXM5GVJE/N981BXXU5GVJE | Odin | 1.95 GB | 2022-11-01 |
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| N981BXXS5FVJA/N981BOWO5FVH8/N981BXXS5FVH8 | Odin | 2.03 GB | 2022-10-01 |
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| N981BXXS5GWAA/N981BOXM5GWA5/N981BXXU5GVL2 | Odin | 1.95 GB | 2023-01-01 |
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| N981BXXU5HWAC/N981BOXM5HWAC/N981BXXU5HWB2 | Odin | 1.69 GB | 2023-01-01 |
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| N981BXXU5HWAC/N981BOXM5HWAC/N981BXXU5HWAC | Odin | 1.69 GB | 2023-01-01 |
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| N981BXXU5GVJE/N981BOXM5GVJE/N981BXXU5GVJE | Odin | 1.97 GB | 2022-10-01 |
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| N981BXXSAHXC4/N981BOXMAHXB1/N981BXXSAHXC4 | Odin | 314.96 MB | 2024-03-01 |
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| N981BXXU4FVE7/N981BOXM4FVE8/N981BXXU4FVE7 | Odin | 296.6 MB | 2022-05-01 |
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| N981BXXU4FVE7/N981BOXM4FVE7/N981BXXU4FVE7 | Odin | 296.81 MB | 2022-05-01 |
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| N981BXXS4FVD6/N981BOXM4FVD6/N981BXXS4FVD6 | Odin | 1.04 GB | 2022-04-01 |
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| N981BXXU4FVG3/N981BOXM4FVG3/N981BXXU4FVG3 | Odin | 279.54 MB | 2022-07-01 |
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| N981BXXU4FVH3/N981BOWO4FVH3/N981BXXU4FVGA | Odin | 234.13 MB | 2022-08-01 |
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| N981BXXS4FVG1/N981BOXM4FVE8/N981BXXU4FVE7 | Odin | 283.36 MB | 2022-07-01 |
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| N981BXXS4FVG1/N981BOXM4FVE7/N981BXXU4FVE7 | Odin | 283.58 MB | 2022-07-01 |
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| N981BXXS4FVEA/N981BOXM4FVE8/N981BXXU4FVE7 | Odin | 295.15 MB | 2022-05-01 |
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| N981BXXS4FVEA/N981BOXM4FVE7/N981BXXU4FVE7 | Odin | 295.37 MB | 2022-05-01 |
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| N981BXXU4FVGA/N981BOXM4FVGA/N981BXXU4FVGA | Odin | 231.75 MB | 2022-07-01 |
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| N981BXXSIHYH3/N981BOXMIHYH3/N981BXXSIHYH3 | Odin | 500.93 MB | 2025-08-01 |
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| N981BXXU3EVA9/N981BOXM3EVA9/N981BXXU3EVA9 | Odin | 1.41 GB | 2022-01-01 |
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| N981BXXU3EVA9/N981BOXM3EVB5/N981BXXU3EVA9 | Odin | 1.41 GB | 2022-01-01 |
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| N981BXXS3FVC8/N981BOXM3FVC5/N981BXXU3FVC5 | Odin | 1.04 GB | 2022-03-01 |
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| N981BXXS3DUJ6/N981BOXM3DUI5/N981BXXS3DUIF | Odin | 189.74 MB | 2021-10-01 |
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| N981BXXU3FVC5/N981BOXM3FVC5/N981BXXU3FVC5 | Odin | 1.04 GB | 2022-03-01 |
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| N981BXXU3DUI5/N981BOXM3DUI5/N981BXXU3DUI5 | Odin | 198.55 MB | 2021-09-01 |
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| N981BXXS3DUH5/N981BOXM3DUH2/N981BXXU3DUH2 | Odin | 217.25 MB | 2021-08-01 |
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| N981BXXU3DUK2/N981BOWO3DUK2/N981BXXU3DUK8 | Odin | 2.29 GB | 2021-11-01 |
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| N981BXXU3DUH2/N981BOXM3DUH2/N981BXXU3DUH2 | Odin | 219.3 MB | 2021-08-01 |
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| N981BXXS3EVC2/N981BOWO3EVA1/N981BXXS3EVC2 | Odin | 1.53 GB | 2022-03-01 |
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| N981BXXS3EVB1/N981BOXM3EVA9/N981BXXU3EVA9 | Odin | 1.41 GB | 2022-02-01 |
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| N981BXXS3EVC1/N981BOXM3EVB5/N981BXXS3EVB7 | Odin | 1.41 GB | 2022-03-01 |
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| N981BXXS3DUKB/N981BOXM3DUI5/N981BXXS3DUKB | Odin | 367.01 MB | 2021-11-01 |
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| N981BXXS3DUIF/N981BOXM3DUI5/N981BXXS3DUIF | Odin | 191.3 MB | 2021-09-01 |
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| N981BXXS3EULH/N981BOXM3EULB/N981BXXU3EULB | Odin | 1.6 GB | 2021-12-01 |
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| N981BXXS3EULF/N981BOXM3EULB/N981BXXU3EULB | Odin | 1.6 GB | 2021-12-01 |
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| N981BXXU2DUF8/N981BOXM2DUF8/N981BXXU2DUF8 | Odin | 727.77 MB | 2021-06-01 |
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| N981BXXS2DUF1/N981BOXM2DUDA/N981BXXS2DUF2 | Odin | 1.26 GB | 2021-06-01 |
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| N981BXXS2DUG1/N981BOWO2DUDA/N981BXXS2DUF1 | Odin | 1.18 GB | 2021-07-01 |
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| N981BXXS2DUF1/N981BOXM2DUDA/N981BXXS2DUF1 | Odin | 1.26 GB | 2021-06-01 |
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| N981BXXU2DUDA/N981BOXM2DUDA/N981BXXU2DUDB | Odin | 1.26 GB | 2021-04-01 |
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| N981BXXU2DUDA/N981BOXM2DUDA/N981BXXU2DUDA | Odin | 1.26 GB | 2021-04-01 |
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| N981BXXSBHXF1/N981BOXMBHXE9/N981BXXSBHXF1 | Odin | 305.66 MB | 2024-06-01 |
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| N981BXXSAHXD1/N981BOXMAHXB1/N981BXXSAHXC4 | Odin | 314.43 MB | 2024-04-01 |
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| N981BXXSHHYG1/N981BOXMHHYG1/N981BXXSHHYG1 | Odin | 229.39 MB | 2025-07-01 |
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| N981BXXSGHYD1/N981BOXMGHYD1/N981BXXSGHYD1 | Odin | 255.23 MB | 2025-04-01 |
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| N981BXXSFHXL1/N981BOXMFHXL1/N981BXXSFHXL1 | Odin | 279.65 MB | 2024-12-01 |
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| N981BXXSEHXJ1/N981BOXMEHXJ1/N981BXXSEHXJ1 | Odin | 296.11 MB | 2024-10-01 |
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| N981BXXSDHXH1/N981BOXMDHXH1/N981BXXSDHXH1 | Odin | 303.76 MB | 2024-08-01 |
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| N981BXXSCHXG1/N981BOXMCHXG1/N981BXXSCHXG1 | Odin | 303.84 MB | 2024-07-01 |
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| N981BXXSAHXB1/N981BOXMAHXB1/N981BXXSAHXB1 | Odin | 314.69 MB | 2024-02-01 |
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| N981BXXU1DUC8/N981BOXM1DUC8/N981BXXU1DUC8 | Odin | 1.34 GB | 2021-03-01 |
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| N981BXXU1DUB5/N981BOXM1DUB5/N981BXXU1DUB5 | Odin | 1.46 GB | 2021-02-01 |
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| N981BXXU1CTL5/N981BOXM1CTL5/N981BXXU1CTL5 | Odin | 2.02 GB | N/A |
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| N981BXXU1CUA3/N981BOXM1CUA3/N981BXXU1CTL5 | Odin | 2.02 GB | 2021-01-01 |
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| N981BXXS1CUA2/N981BOXM1CTL5/N981BXXU1CTL5 | Odin | 2.02 GB | 2021-01-01 |
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| N981BXXS1DUD1/N981BOXM1DUC8/N981BXXU1DUC8 | Odin | 1.34 GB | 2021-04-01 |
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| N981BXXS1DUC1/N981BOXM1DUB5/N981BXXU1DUB5 | Odin | 1.46 GB | 2021-03-01 |
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Also available with 4G/LTE only
Versions: SM-N981B (International); SM-N981U (USA); SM-N981U1 (USA unlocked); SM-N981W (Canada)
| 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 | |
| CDMA2000 1xEV-DO | ||
| 4G bands | 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 - SM-N981U | |
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-N981B | ||
| 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 29, 30, 38, 39, 40, 41, 46, 66, 71 - SM-N981W | ||
| 5G bands | 2, 5, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-N981U | |
| 1, 3, 5, 7, 8, 28, 40, 77, 78 SA/NSA/Sub6 - SM-N981B | ||
| 41, 66, 71 Sub6 - SM-N981W | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G |
| Launch | Announced | 2020, August 05 |
|---|---|---|
| Status | Available. Released 2020, August 21 |
| Body | Dimensions | 161.6 x 75.2 x 8.3 mm (6.36 x 2.96 x 0.33 in) |
|---|---|---|
| Weight | 192 g (Sub6 5G), 194 g (mmWave 5G) (6.77 oz) | |
| Build | Glass front (Gorilla Glass 5), plastic back | |
| SIM | · Nano-SIM + eSIM · Nano-SIM + Nano-SIM | |
| IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus, 26ms latency (Bluetooth integration, accelerometer, gyro) |
| Display | Type | Super AMOLED Plus, HDR10+ |
|---|---|---|
| Size | 6.7 inches, 108.4 cm2 (~89.2% screen-to-body ratio) | |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~393 ppi density) | |
| Protection | Corning Gorilla Glass 5 |
| Platform | OS | Android 10, upgradable to Android 13, One UI 5 |
|---|---|---|
| Chipset | Exynos 990 (7 nm+) - Global Qualcomm SM8250 Snapdragon 865 5G+ (7 nm+) - USA | |
| CPU | Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - Global Octa-core (1x3.0 GHz Kryo 585 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USA | |
| GPU | Mali-G77 MP11 - Global Adreno 650 - USA |
| Memory | Card slot | No |
|---|---|---|
| Internal | 128GB 8GB RAM, 256GB 8GB RAM | |
| UFS 3.0 |
| Main Camera | Triple | 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 27mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 3x hybrid zoom 12 MP, f/2.2, 120˚, 13mm (ultrawide), 1/2.55", 1.4µm |
|---|---|---|
| Features | LED flash, auto-HDR, panorama | |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS |
| Selfie camera | Single | 10 MP, f/2.2, 26mm (wide), 1/3.2", 1.22µm, dual pixel PDAF |
|---|---|---|
| Features | HDR | |
| Video | 4K@30/60fps, 1080p@30fps |
| Sound | Loudspeaker | Yes, with stereo speakers |
|---|---|---|
| 3.5mm jack | No | |
| High-bitrate audio support Tuned by AKG |
| Comms | WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
|---|---|---|
| Bluetooth | 5.0, A2DP, LE, aptX | |
| Positioning | GPS, GLONASS, BDS, GALILEO | |
| NFC | Yes | |
| Radio | FM radio (Snapdragon model only; market/operator dependent) | |
| USB | USB Type-C 3.2, OTG |
| Features | Sensors | Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer |
|---|---|---|
| Samsung Wireless DeX (desktop experience support) ANT+ |
| Battery | Type | Li-Ion 4300 mAh |
|---|---|---|
| Charging | 25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless |
| Misc | Colors | Mystic Green, Mystic Bronze, Mystic Gray, Mystic Red, Mystic Blue |
|---|---|---|
| Models | SM-N981B, SM-N981B/DS, SM-N981U, SM-N981U1, SM-N981W, SM-N9810, SM-N981N | |
| SAR | 0.95 W/kg (head) 0.72 W/kg (body) | |
| SAR EU | 0.68 W/kg (head) 1.37 W/kg (body) | |
| Price | About 430 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 Note20 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.
