M536BXXSDGZA1 – Galaxy M53 5G firmware
Build M536BXXSDGZA1 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 Jan 20, 2026 (method) and has reached
25 regions so far. It raises the bootloader bit from 12 to 13: once installed, the device no longer accepts firmware with bit 12 or lower, so a downgrade to M536BXXSCGYL3 is blocked. Samsung still serves this file.
- Model
- SM-M536B
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 13
- First released
- Jan 20, 2026
- Regions
- 25
Rollout timeline by region
The date each region code (CSC) first received M536BXXSDGZA1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
SEK | Ukraine | Jan 20, 2026 | day 0 | M536BXXSDGZA1/M536BOXMDGZA1/M536BXXSDGZA1 |
SER | Russia | Jan 20, 2026 | day 0 | M536BXXSDGZA1/M536BOXMDGZA1/M536BXXSDGZA1 |
EUX | Europe (Multi-CSC) | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOXMDGZA1/M536BXXSDGZA1 |
EUY | Europe (Multi-CSC) | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOXMDGZA1/M536BXXSDGZA1 |
BVO | Bolivia | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOWODGZA1/M536BXXSDGZA1 |
CHO | Chile | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOWODGZA1/M536BXXSDGZA1 |
MXO | Mexico | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOWODGZA1/M536BXXSDGZA1 |
TPA | Panama | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOWODGZA1/M536BXXSDGZA1 |
ZTO | Brazil | Jan 21, 2026 | +1 day | M536BXXSDGZA1/M536BOWODGZA1/M536BXXSDGZA1 |
BRI | Taiwan | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLMDGZA1/M536BXXSDGZA1 |
EGY | Egypt | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
GLB | Philippines (Globe) | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLMDGZA1/M536BXXSDGZA1 |
KSA | Saudi Arabia | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
LYS | Libya | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
MID | Middle East | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
MWD | Morocco | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
THL | Thailand | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLMDGZA1/M536BXXSDGZA1 |
TUN | Tunisia | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
XID | Indonesia | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLEDGZA1/M536BXXSDGZA1 |
XME | Malaysia | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLMDGZA1/M536BXXSDGZA1 |
XSG | United Arab Emirates | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOJMDGZA1/M536BXXSDGZA1 |
XTC | Philippines | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLMDGZA1/M536BXXSDGZA1 |
XXV | Vietnam | Jan 26, 2026 | +6 days | M536BXXSDGZA1/M536BOLMDGZA1/M536BXXSDGZA1 |
INS | India | Feb 4, 2026 | +15 days | M536BXXSDGZA1/M536BODMDGZA1/M536BXXSDGZA1 |
BKD | Bangladesh | Feb 4, 2026 | +15 days | M536BXXSDGZA1/M536BODMDGZA1/M536BXXSDGZA1 |
Download and release notes
samloader download -m SM-M536B -r EUX -v M536BXXSDGZA1/M536BOXMDGZA1/M536BXXSDGZA1Samsung'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 M536BXXSDGZA1.