X900ZCUBEZJ3 – Galaxy Tab S8 Ultra firmware
Build X900ZCUBEZJ3 is a feature update for the Galaxy Tab S8 Ultra (SM-X900)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Nov 9, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 11, so downgrading to the previous build X900OPUBEZJ3 is still possible. Samsung still serves this file.
- Model
- SM-X900
- Android
- Android 16
- Type
- Feature
- Bootloader bit
- 11
- First released
- Nov 9, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received X900ZCUBEZJ3, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHN | China | Nov 9, 2026 | day 0 | X900ZCUBEZJ3/X900CHNBEZJ3/X900ZCUBEZJ3 |
Download and release notes
samloader download -m SM-X900 -r CHN -v X900ZCUBEZJ3/X900CHNBEZJ3/X900ZCUBEZJ3Samsung's release notes and security patch level for this update: SM-X900 / CHN on doc.samsungmobile.com. What each part of the build number means: decode X900ZCUBEZJ3.