Galaxy S26 SM-S9420 firmware
The latest stable build is S9420ZHU5BZJA (Android 17, feature update), first released on Nov 2, 2026 – 4 days ago. Samsung has published 25 stable builds for this model since Mar 5, 2026: 14 security and 11 feature updates, from Android 16 to Android 17. The current bootloader (binary) version is 5. A device on bit 5 only accepts firmware with bit 5 or higher – see downgrading and the bootloader bit.
- Latest build
S9420ZHU5BZJA- Released
- Nov 2, 2026
- Android
- Android 17
- Bootloader bit
- 5
- Regions
- 3
- Stable builds
- 25
Latest firmware by region (CSC)
Samsung builds firmware per region code (CSC). Pick the code that matches your device – it is shown under Settings › About phone › Software information › Service provider software version. Follow a code for its complete history.
| CSC | Region | Latest build | Android | Released | Builds |
|---|---|---|---|---|---|
BRI | Taiwan | S9420ZHU5BZJA | Android 17 | Nov 2, 2026 | 13 |
CHC | China | S9420ZCU5AZJ3 | Android 16 | Nov 2, 2026 | 12 |
TGY | Hong Kong | S9420ZHU5BZJA | Android 17 | Nov 2, 2026 | 13 |
Firmware history (25 builds)
Every stable build (PDA version) Samsung has published for the SM-S9420, newest first. “” is the earliest date the build appeared on Samsung's servers in any region. “” means Samsung no longer serves the file for that build.
| Build (PDA) | Released | Android | Type | Bit | Regions | File |
|---|---|---|---|---|---|---|
S9420ZHU5BZJA | Nov 2, 2026 | Android 17 | Feature | 5 | 2 | on server |
S9420ZCU5AZJ3 | Nov 2, 2026 | Android 16 | Feature | 5 | 1 | on server |
S9420ZHS4BZIG | Oct 1, 2026 | Android 17 | Security | 4 | 2 | on server |
S9420ZHU4BZI6 | Sep 30, 2026 | Android 17 | Feature | 4 | 2 | on server |
S9420ZCS4AZI1 | Sep 22, 2026 | Android 16 | Security | 4 | 1 | on server |
S9420ZCS4AZH3 | Sep 3, 2026 | Android 16 | Security | 4 | 1 | on server |
S9420ZHS4AZH3 | Sep 3, 2026 | Android 16 | Security | 4 | 2 | on server |
S9420ZHS4AZG1 | Jul 15, 2026 | Android 16 | Security | 4 | 2 | on server |
S9420ZCS4AZG1 | Jul 15, 2026 | Android 16 | Security | 4 | 1 | on server |
S9420ZCS3AZF1 | Jun 18, 2026 | Android 16 | Security | 3 | 1 | on server |
S9420ZHS3AZF1 | Jun 18, 2026 | Android 16 | Security | 3 | 2 | on server |
S9420ZHS2AZE1 | May 28, 2026 | Android 16 | Security | 2 | 2 | on server |
S9420ZCS2AZE1 | May 28, 2026 | Android 16 | Security | 2 | 1 | on server |
S9420ZHU2AZDE | May 6, 2026 | Android 16 | Feature | 2 | 2 | on server |
S9420ZCU2AZDE | May 6, 2026 | Android 16 | Feature | 2 | 1 | on server |
S9420ZHS2AZCL | Apr 8, 2026 | Android 16 | Security | 2 | 2 | on server |
S9420ZCS2AZCO | Apr 6, 2026 | Android 16 | Security | 2 | 1 | on server |
S9420ZHU1AZCF | Mar 26, 2026 | Android 16 | Feature | 1 | 2 | on server |
S9420ZCU1AZCG | Mar 19, 2026 | Android 16 | Feature | 1 | 1 | on server |
S9420ZHS1AZC7 | Mar 11, 2026 | Android 16 | Security | 1 | 2 | on server |
S9420ZCS1AZC7 | Mar 11, 2026 | Android 16 | Security | 1 | 1 | on server |
S9420ZHU1AZAB | Mar 5, 2026 | Android 16 | Feature | 1 | 2 | on server |
S9420ZCU1AZAD | Mar 5, 2026 | Android 16 | Feature | 1 | 1 | on server |
S9420ZHU5BZJC | – | Android 17 | Feature | 5 | 2 | on server |
S9420ZCU5AZJC | – | Android 16 | Feature | 5 | 1 | on server |
How to download SM-S9420 firmware
We do not host firmware. Download it directly from Samsung's servers with a free open-source tool, for example samloader:
samloader download -m SM-S9420 -r BRIReplace BRI with your region code. Step-by-step instructions, including a graphical alternative:
How to download Samsung firmware.