X820ZCS8DZF2 – Galaxy Tab S10+ firmware
Build X820ZCS8DZF2 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 Jul 7, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 8, so downgrading to the previous build X820XXS8DZF2 is still possible. Samsung still serves this file.
- Model
- SM-X820
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 8
- First released
- Jul 7, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received X820ZCS8DZF2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHN | China | Jul 7, 2026 | day 0 | X820ZCS8DZF2/X820CHN8DZF2/X820ZCS8DZF2 |
Download and release notes
samloader download -m SM-X820 -r CHN -v X820ZCS8DZF2/X820CHN8DZF2/X820ZCS8DZF2Samsung'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 X820ZCS8DZF2.