M045FXXSFEZB4 – Galaxy M04 firmware
Build M045FXXSFEZB4 is a security update for the Galaxy M04 (SM-M045F)
on Android 14 (One UI 6). It first appeared on Samsung's servers on Mar 17, 2026 (method) and has reached
3 regions so far. It raises the bootloader bit from 14 to 15: once installed, the device no longer accepts firmware with bit 14 or lower, so a downgrade to M045FXXSEEZA1 is blocked. Samsung still serves this file.
- Model
- SM-M045F
- Android
- Android 14
- Type
- Security
- Bootloader bit
- 15
- First released
- Mar 17, 2026
- Regions
- 3
Rollout timeline by region
The date each region code (CSC) first received M045FXXSFEZB4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
INS | India | Mar 17, 2026 | day 0 | M045FXXSFEZB4/M045FODMFEZB4/M045FXXSFEZB4 |
NPB | Nepal | Mar 17, 2026 | day 0 | M045FXXSFEZB4/M045FODMFEZB4/M045FXXSFEZB4 |
SLK | Sri Lanka | Mar 17, 2026 | day 0 | M045FXXSFEZB4/M045FODMFEZB4/M045FXXSFEZB4 |
Download and release notes
samloader download -m SM-M045F -r INS -v M045FXXSFEZB4/M045FODMFEZB4/M045FXXSFEZB4Samsung's release notes and security patch level for this update: SM-M045F / INS on doc.samsungmobile.com. What each part of the build number means: decode M045FXXSFEZB4.