M356BXXS9DZH5 – Galaxy M35 5G firmware
Build M356BXXS9DZH5 is a security update for the Galaxy M35 5G (SM-M356B)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 7, 2026 (method) and has reached
8 regions so far. It raises the bootloader bit from 8 to 9: once installed, the device no longer accepts firmware with bit 8 or lower, so a downgrade to M356BXXU8DZE3 is blocked. Samsung still serves this file.
- Model
- SM-M356B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 9
- First released
- Sep 7, 2026
- Regions
- 8
Rollout timeline by region
The date each region code (CSC) first received M356BXXS9DZH5, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
XXV | Vietnam | Sep 7, 2026 | day 0 | M356BXXS9DZH5/M356BOLM9DZH5/M356BXXS9DZH5 |
BKD | Bangladesh | Sep 10, 2026 | +3 days | M356BXXS9DZH5/M356BODM9DZH5/M356BXXS9DZH5 |
INS | India | Sep 10, 2026 | +3 days | M356BXXS9DZH5/M356BODM9DZH5/M356BXXS9DZH5 |
NPB | Nepal | Sep 10, 2026 | +3 days | M356BXXS9DZH5/M356BODM9DZH5/M356BXXS9DZH5 |
SLK | Sri Lanka | Sep 10, 2026 | +3 days | M356BXXS9DZH5/M356BODM9DZH5/M356BXXS9DZH5 |
ZTO | Brazil | Sep 10, 2026 | +3 days | M356BXXS9DZH5/M356BOWO9DZH5/M356BXXS9DZH5 |
EUX | Europe (Multi-CSC) | Sep 13, 2026 | +6 days | M356BXXS9DZH5/M356BOXM9DZH5/M356BXXS9DZH5 |
EUY | Europe (Multi-CSC) | Sep 13, 2026 | +6 days | M356BXXS9DZH5/M356BOXM9DZH5/M356BXXS9DZH5 |
Download and release notes
samloader download -m SM-M356B -r EUX -v M356BXXS9DZH5/M356BOXM9DZH5/M356BXXS9DZH5Samsung's release notes and security patch level for this update: SM-M356B / EUX on doc.samsungmobile.com. What each part of the build number means: decode M356BXXS9DZH5.