G556BXXSIEZH1 – Galaxy XCover7 firmware
Build G556BXXSIEZH1 is a security update for the Galaxy XCover7 (SM-G556B)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 19, 2026 (method) and has reached
2 regions so far. It keeps bootloader bit 18, so downgrading to the previous build G556BXXSIEZH2 is still possible. Samsung still serves this file.
- Model
- SM-G556B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 18
- First released
- Aug 19, 2026
- Regions
- 2
Rollout timeline by region
The date each region code (CSC) first received G556BXXSIEZH1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
EUX | Europe (Multi-CSC) | Aug 19, 2026 | day 0 | G556BXXSIEZH1/G556BOXMIEZH1/G556BXXSIEZH1 |
EUY | Europe (Multi-CSC) | Aug 19, 2026 | day 0 | G556BXXSIEZH1/G556BOXMIEZH1/G556BXXSIEZH1 |
Download and release notes
samloader download -m SM-G556B -r EUX -v G556BXXSIEZH1/G556BOXMIEZH1/G556BXXSIEZH1Samsung's release notes and security patch level for this update: SM-G556B / EUX on doc.samsungmobile.com. What each part of the build number means: decode G556BXXSIEZH1.