A3051XXU4CUJ1 – Galaxy A40s firmware
Build A3051XXU4CUJ1 is a feature update for the Galaxy A40s (SM-A3051)
on Android 11 (One UI 3). It first appeared on Samsung's servers on Oct 28, 2021 (method) and has reached
1 region so far. It keeps bootloader bit 4, so downgrading to the previous build A3051XXU4CUE4 is still possible. Samsung still serves this file.
- Model
- SM-A3051
- Android
- Android 11
- Type
- Feature
- Bootloader bit
- 4
- First released
- Oct 28, 2021
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received A3051XXU4CUJ1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
BRI | Taiwan | Oct 28, 2021 | day 0 | A3051XXU4CUJ1/A3051OLO4CUJ1/A3051XXU4CUJ1 |
Download and release notes
samloader download -m SM-A3051 -r BRI -v A3051XXU4CUJ1/A3051OLO4CUJ1/A3051XXU4CUJ1Samsung's release notes and security patch level for this update: SM-A3051 / BRI on doc.samsungmobile.com. What each part of the build number means: decode A3051XXU4CUJ1.