X828USQSBDZI4 – Galaxy Tab S10+ 5G firmware
Build X828USQSBDZI4 is a security update for the Galaxy Tab S10+ 5G (SM-X828U)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 23, 2026 (method) and has reached
5 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to X828USQSADZH4 is blocked. Samsung still serves this file.
- Model
- SM-X828U
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 11
- First released
- Sep 23, 2026
- Regions
- 5
Rollout timeline by region
The date each region code (CSC) first received X828USQSBDZI4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ATT | USA (AT&T) | Sep 23, 2026 | day 0 | X828USQSBDZI4/X828UOYNBDZI4/X828USQSBDZI4 |
TMB | USA (T-Mobile) | Sep 27, 2026 | +4 days | X828USQSBDZI4/X828UOYNBDZI4/X828USQSBDZI4 |
TMK | USA (MetroPCS) | Sep 27, 2026 | +4 days | X828USQSBDZI4/X828UOYNBDZI4/X828USQSBDZI4 |
USC | USA (US Cellular) | Sep 27, 2026 | +4 days | X828USQSBDZI4/X828UOYNBDZI4/X828USQSBDZI4 |
VZW | USA (Verizon) | Sep 30, 2026 | +7 days | X828USQSBDZI4/X828UOYNBDZI4/X828USQSBDZI4 |
Download and release notes
samloader download -m SM-X828U -r ATT -v X828USQSBDZI4/X828UOYNBDZI4/X828USQSBDZI4Samsung's release notes and security patch level for this update: SM-X828U / ATT on doc.samsungmobile.com. What each part of the build number means: decode X828USQSBDZI4.