T630XXSADZB4 – Galaxy Tab Active4 Pro firmware
Build T630XXSADZB4 is a security update for the Galaxy Tab Active4 Pro (SM-T630)
on Android 15 (One UI 7). It first appeared on Samsung's servers on Mar 4, 2026 (method) and has reached
5 regions so far. It raises the bootloader bit from 9 to 10: once installed, the device no longer accepts firmware with bit 9 or lower, so a downgrade to T630XXS9DYJ2 is blocked. Samsung still serves this file.
- Model
- SM-T630
- Android
- Android 15
- Type
- Security
- Bootloader bit
- 10
- First released
- Mar 4, 2026
- Regions
- 5
Rollout timeline by region
The date each region code (CSC) first received T630XXSADZB4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Mar 4, 2026 | day 0 | T630XXSADZB4/T630KOOADZB4/T630XXSADZB4 |
EUX | Europe (Multi-CSC) | Mar 8, 2026 | +4 days | T630XXSADZB4/T630OXMADZB4/T630XXSADZB4 |
EUY | Europe (Multi-CSC) | Mar 8, 2026 | +4 days | T630XXSADZB4/T630OXMADZB4/T630XXSADZB4 |
XSP | Singapore | Mar 8, 2026 | +4 days | T630XXSADZB4/T630OLMADZB4/T630XXSADZB4 |
XJP | Japan | Mar 16, 2026 | +12 days | T630XXSADZB4/T630XJPADZB4/T630XXSADZB4 |
Download and release notes
samloader download -m SM-T630 -r EUX -v T630XXSADZB4/T630OXMADZB4/T630XXSADZB4Samsung's release notes and security patch level for this update: SM-T630 / EUX on doc.samsungmobile.com. What each part of the build number means: decode T630XXSADZB4.