M236BXXSEEZB1 – Galaxy M23 5G firmware
Build M236BXXSEEZB1 is a security update for the Galaxy M23 5G (SM-M236B)
on Android 14 (One UI 6). It first appeared on Samsung's servers on Mar 15, 2026 (method) and has reached
18 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 M236BXXSDEYL2 is blocked. Samsung still serves this file.
- Model
- SM-M236B
- Android
- Android 14
- Type
- Security
- Bootloader bit
- 14
- First released
- Mar 15, 2026
- Regions
- 18
Rollout timeline by region
The date each region code (CSC) first received M236BXXSEEZB1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
EUX | Europe (Multi-CSC) | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOXMEEZB1/M236BXXSEEZB1 |
EUY | Europe (Multi-CSC) | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOXMEEZB1/M236BXXSEEZB1 |
SEK | Ukraine | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOXMEEZB1/M236BXXSEEZB1 |
SER | Russia | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOXMEEZB1/M236BXXSEEZB1 |
GLB | Philippines (Globe) | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOLMEEZB1/M236BXXSEEZB1 |
THL | Thailand | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOLMEEZB1/M236BXXSEEZB1 |
XME | Malaysia | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOLMEEZB1/M236BXXSEEZB1 |
XTC | Philippines | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOLMEEZB1/M236BXXSEEZB1 |
XXV | Vietnam | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOLMEEZB1/M236BXXSEEZB1 |
XID | Indonesia | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOLEEEZB1/M236BXXSEEZB1 |
EGY | Egypt | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
MWD | Morocco | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
KSA | Saudi Arabia | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
LYS | Libya | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
MID | Middle East | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
TUR | Turkey | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
XSG | United Arab Emirates | Mar 15, 2026 | day 0 | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
SLK | Sri Lanka | Mar 30, 2026 | +15 days | M236BXXSEEZB1/M236BOJMEEZB1/M236BXXSEEZB1 |
Download and release notes
samloader download -m SM-M236B -r EUX -v M236BXXSEEZB1/M236BOXMEEZB1/M236BXXSEEZB1Samsung's release notes and security patch level for this update: SM-M236B / EUX on doc.samsungmobile.com. What each part of the build number means: decode M236BXXSEEZB1.