E045FXXSFEZB4 – Galaxy F04 firmware

Build E045FXXSFEZB4 is a security update for the Galaxy F04 (SM-E045F) on Android 14 (One UI 6). It first appeared on Samsung's servers on Mar 16, 2026 (method) and has reached 1 region 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 E045FXXSEEZA1 is blocked. Samsung still serves this file.

Model

SM-E045F

Android

Android 14

Type

Security

Bootloader bit

15

First released

Mar 16, 2026

Regions

1

Rollout timeline by region

The date each region code (CSC) first received E045FXXSFEZB4, counted from the first release.

Download and release notes

samloader download -m SM-E045F -r INS -v E045FXXSFEZB4/E045FODMFEZB4/E045FXXSFEZB4

Samsung's release notes and security patch level for this update: SM-E045F / INS on doc.samsungmobile.com. What each part of the build number means: decode E045FXXSFEZB4.