A042MUBSGEZB4 – Galaxy A04e firmware
Build A042MUBSGEZB4 is a security update for the Galaxy A04e (SM-A042M)
on Android 14 (One UI 6). It first appeared on Samsung's servers on Mar 19, 2026 (method) and has reached
4 regions so far. It keeps bootloader bit 16, so downgrading to the previous build A042MUBSGEZB3 is still possible. Samsung still serves this file.
- Model
- SM-A042M
- Android
- Android 14
- Type
- Security
- Bootloader bit
- 16
- First released
- Mar 19, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received A042MUBSGEZB4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ZTA | Brazil (Claro) | Mar 19, 2026 | day 0 | A042MUBSGEZB4/A042MOWOGEZB4/A042MUBSGEZB2 |
ZTM | Brazil (TIM) | Mar 19, 2026 | day 0 | A042MUBSGEZB4/A042MOWOGEZB4/A042MUBSGEZB2 |
ZTO | Brazil | Mar 19, 2026 | day 0 | A042MUBSGEZB4/A042MOWOGEZB4/A042MUBSGEZB2 |
ZVV | Brazil (Vivo) | Mar 19, 2026 | day 0 | A042MUBSGEZB4/A042MOWOGEZB4/A042MUBSGEZB2 |
Download and release notes
samloader download -m SM-A042M -r ZTA -v A042MUBSGEZB4/A042MOWOGEZB4/A042MUBSGEZB2Samsung's release notes and security patch level for this update: SM-A042M / ZTA on doc.samsungmobile.com. What each part of the build number means: decode A042MUBSGEZB4.