X820ZCSADZH1 – Galaxy Tab S10+ firmware
Build X820ZCSADZH1 is a security update for the Galaxy Tab S10+ (SM-X820)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 15, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 10, so downgrading to the previous build X820XXSADZH1 is still possible. Samsung still serves this file.
- Model
- SM-X820
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 10
- First released
- Sep 15, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received X820ZCSADZH1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHN | China | Sep 15, 2026 | day 0 | X820ZCSADZH1/X820CHNADZH1/X820ZCSADZH1 |
Download and release notes
samloader download -m SM-X820 -r CHN -v X820ZCSADZH1/X820CHNADZH1/X820ZCSADZH1Samsung's release notes and security patch level for this update: SM-X820 / CHN on doc.samsungmobile.com. What each part of the build number means: decode X820ZCSADZH1.