M536BXXSEGZB7 – Galaxy M53 5G firmware
Build M536BXXSEGZB7 is a security update for the Galaxy M53 5G (SM-M536B)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Mar 8, 2026 (method) and has reached
25 regions so far. It raises the bootloader bit from 13 to 14: once installed, the device no longer accepts firmware with bit 13 or lower, so a downgrade to M536BXXSDGZA1 is blocked. Samsung still serves this file.
- Model
- SM-M536B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 14
- First released
- Mar 8, 2026
- Regions
- 25
Rollout timeline by region
The date each region code (CSC) first received M536BXXSEGZB7, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
EGY | Egypt | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
KSA | Saudi Arabia | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
LYS | Libya | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
MID | Middle East | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
MWD | Morocco | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
TUN | Tunisia | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
XSG | United Arab Emirates | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOJMEGZB7/M536BXXSEGZB7 |
XID | Indonesia | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLEEGZB7/M536BXXSEGZB7 |
BRI | Taiwan | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLMEGZB7/M536BXXSEGZB7 |
GLB | Philippines (Globe) | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLMEGZB7/M536BXXSEGZB7 |
THL | Thailand | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLMEGZB7/M536BXXSEGZB7 |
XME | Malaysia | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLMEGZB7/M536BXXSEGZB7 |
XTC | Philippines | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLMEGZB7/M536BXXSEGZB7 |
XXV | Vietnam | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOLMEGZB7/M536BXXSEGZB7 |
EUX | Europe (Multi-CSC) | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOXMEGZB7/M536BXXSEGZB7 |
EUY | Europe (Multi-CSC) | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOXMEGZB7/M536BXXSEGZB7 |
SEK | Ukraine | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOXMEGZB7/M536BXXSEGZB7 |
SER | Russia | Mar 8, 2026 | day 0 | M536BXXSEGZB7/M536BOXMEGZB7/M536BXXSEGZB7 |
BKD | Bangladesh | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BODMEGZB7/M536BXXSEGZB7 |
INS | India | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BODMEGZB7/M536BXXSEGZB7 |
BVO | Bolivia | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BOWOEGZB6/M536BXXSEGZB7 |
CHO | Chile | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BOWOEGZB6/M536BXXSEGZB7 |
MXO | Mexico | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BOWOEGZB6/M536BXXSEGZB7 |
TPA | Panama | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BOWOEGZB6/M536BXXSEGZB7 |
ZTO | Brazil | Mar 9, 2026 | +1 day | M536BXXSEGZB7/M536BOWOEGZB6/M536BXXSEGZB7 |
Download and release notes
samloader download -m SM-M536B -r EUX -v M536BXXSEGZB7/M536BOXMEGZB7/M536BXXSEGZB7Samsung's release notes and security patch level for this update: SM-M536B / EUX on doc.samsungmobile.com. What each part of the build number means: decode M536BXXSEGZB7.