M356BXXS8CZD4 – Galaxy M35 5G firmware
Build M356BXXS8CZD4 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 May 4, 2026 (method) and has reached
8 regions so far. It raises the bootloader bit from 7 to 8: once installed, the device no longer accepts firmware with bit 7 or lower, so a downgrade to M356BXXS7CZB4 is blocked. Samsung still serves this file.
- Model
- SM-M356B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 8
- First released
- May 4, 2026
- Regions
- 8
Rollout timeline by region
The date each region code (CSC) first received M356BXXS8CZD4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
XXV | Vietnam | May 4, 2026 | day 0 | M356BXXS8CZD4/M356BOLM8CZD4/M356BXXS8CZD4 |
BKD | Bangladesh | May 6, 2026 | +2 days | M356BXXS8CZD4/M356BODM8CZD4/M356BXXS8CZD4 |
INS | India | May 6, 2026 | +2 days | M356BXXS8CZD4/M356BODM8CZD4/M356BXXS8CZD4 |
NPB | Nepal | May 6, 2026 | +2 days | M356BXXS8CZD4/M356BODM8CZD4/M356BXXS8CZD4 |
SLK | Sri Lanka | May 6, 2026 | +2 days | M356BXXS8CZD4/M356BODM8CZD4/M356BXXS8CZD4 |
ZTO | Brazil | May 7, 2026 | +3 days | M356BXXS8CZD4/M356BOWO8CZD4/M356BXXS8CZD4 |
EUX | Europe (Multi-CSC) | May 10, 2026 | +6 days | M356BXXS8CZD4/M356BOXM8CZD4/M356BXXS8CZD4 |
EUY | Europe (Multi-CSC) | May 10, 2026 | +6 days | M356BXXS8CZD4/M356BOXM8CZD4/M356BXXS8CZD4 |
Download and release notes
samloader download -m SM-M356B -r EUX -v M356BXXS8CZD4/M356BOXM8CZD4/M356BXXS8CZD4Samsung'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 M356BXXS8CZD4.