A315NKSU3DWF1 – Galaxy A31 firmware
Build A315NKSU3DWF1 is a feature update for the Galaxy A31 (SM-A315N)
on Android 12 (One UI 4). It first appeared on Samsung's servers on Jul 23, 2023 (method) and has reached
4 regions so far. It raises the bootloader bit from 2 to 3: once installed, the device no longer accepts firmware with bit 2 or lower, so a downgrade to A315NKSU2DWA1 is blocked. Samsung still serves this file.
- Model
- SM-A315N
- Android
- Android 12
- Type
- Feature
- Bootloader bit
- 3
- First released
- Jul 23, 2023
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received A315NKSU3DWF1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Jul 23, 2023 | day 0 | A315NKSU3DWF1/A315NOKR3DWF1/A315NKOU3DWF1 |
KTC | South Korea (KT) | Jul 23, 2023 | day 0 | A315NKSU3DWF1/A315NOKR3DWF1/A315NKOU3DWF1 |
LUC | South Korea (LG U+) | Jul 23, 2023 | day 0 | A315NKSU3DWF1/A315NOKR3DWF1/A315NKOU3DWF1 |
SKC | South Korea (SKT) | Jul 23, 2023 | day 0 | A315NKSU3DWF1/A315NOKR3DWF1/A315NKOU3DWF1 |
Download and release notes
samloader download -m SM-A315N -r KOO -v A315NKSU3DWF1/A315NOKR3DWF1/A315NKOU3DWF1Samsung's release notes and security patch level for this update: SM-A315N / KOO on doc.samsungmobile.com. What each part of the build number means: decode A315NKSU3DWF1.