X306BXXSACZE1 – Galaxy Tab Active5 5G firmware
Build X306BXXSACZE1 is a security update for the Galaxy Tab Active5 5G (SM-X306B)
on Android 16 (One UI 8). It first appeared on Samsung's servers on May 20, 2026 (method) and has reached
2 regions so far. It keeps bootloader bit 10, so downgrading to the previous build X306BXXSACZB6 is still possible. Samsung still serves this file.
- Model
- SM-X306B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 10
- First released
- May 20, 2026
- Regions
- 2
Rollout timeline by region
The date each region code (CSC) first received X306BXXSACZE1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
EUX | Europe (Multi-CSC) | May 20, 2026 | day 0 | X306BXXSACZE1/X306BOXMACZE1/X306BXXSACZE1 |
EUY | Europe (Multi-CSC) | May 20, 2026 | day 0 | X306BXXSACZE1/X306BOXMACZE1/X306BXXSACZE1 |
Download and release notes
samloader download -m SM-X306B -r EUX -v X306BXXSACZE1/X306BOXMACZE1/X306BXXSACZE1Samsung's release notes and security patch level for this update: SM-X306B / EUX on doc.samsungmobile.com. What each part of the build number means: decode X306BXXSACZE1.