X133DXU4BZH1 – Galaxy Tab A11 firmware
Build X133DXU4BZH1 is a feature update for the Galaxy Tab A11 (SM-X133)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 11, 2026 (method) and has reached
10 regions so far. It keeps bootloader bit 4, so downgrading to the previous build X133DXS4BZG8 is still possible. Samsung still serves this file.
- Model
- SM-X133
- Android
- Android 16
- Type
- Feature
- Bootloader bit
- 4
- First released
- Aug 11, 2026
- Regions
- 10
Rollout timeline by region
The date each region code (CSC) first received X133DXU4BZH1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Aug 11, 2026 | day 0 | X133DXU4BZH1/X133KOO4BZH1/X133DXU4BZH1 |
EGY | Egypt | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OJM4BZH1/X133DXU4BZH1 |
XSG | United Arab Emirates | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OJM4BZH1/X133DXU4BZH1 |
XSP | Singapore | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OLM4BZH1/X133DXU4BZH1 |
MXO | Mexico | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OWO4BZH1/X133DXU4BZH1 |
ZTO | Brazil | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OWO4BZH1/X133DXU4BZH1 |
MWD | Morocco | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OJM4BZH1/X133DXU4BZH1 |
XID | Indonesia | Aug 18, 2026 | +7 days | X133DXU4BZH1/X133OLE4BZH1/X133DXU4BZH1 |
BRI | Taiwan | Aug 25, 2026 | +14 days | X133DXU4BZH1/X133OZS4BZH1/X133DXU4BZH1 |
TGY | Hong Kong | Aug 25, 2026 | +14 days | X133DXU4BZH1/X133OZS4BZH1/X133DXU4BZH1 |
Download and release notes
samloader download -m SM-X133 -r KOO -v X133DXU4BZH1/X133KOO4BZH1/X133DXU4BZH1Samsung's release notes and security patch level for this update: SM-X133 / KOO on doc.samsungmobile.com. What each part of the build number means: decode X133DXU4BZH1.