A315NKSS4DWL1 – Galaxy A31 firmware
Build A315NKSS4DWL1 is a security update for the Galaxy A31 (SM-A315N)
on Android 12 (One UI 4). It first appeared on Samsung's servers on Jan 10, 2024 (method) and has reached
4 regions so far. It raises the bootloader bit from 3 to 4: once installed, the device no longer accepts firmware with bit 3 or lower, so a downgrade to A315NKSU3DWF1 is blocked. Samsung still serves this file.
- Model
- SM-A315N
- Android
- Android 12
- Type
- Security
- Bootloader bit
- 4
- First released
- Jan 10, 2024
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received A315NKSS4DWL1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Jan 10, 2024 | day 0 | A315NKSS4DWL1/A315NOKR4DWL1/A315NKOS4DWL1 |
KTC | South Korea (KT) | Jan 10, 2024 | day 0 | A315NKSS4DWL1/A315NOKR4DWL1/A315NKOS4DWL1 |
LUC | South Korea (LG U+) | Jan 10, 2024 | day 0 | A315NKSS4DWL1/A315NOKR4DWL1/A315NKOS4DWL1 |
SKC | South Korea (SKT) | Jan 10, 2024 | day 0 | A315NKSS4DWL1/A315NOKR4DWL1/A315NKOS4DWL1 |
Download and release notes
samloader download -m SM-A315N -r KOO -v A315NKSS4DWL1/A315NOKR4DWL1/A315NKOS4DWL1Samsung'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 A315NKSS4DWL1.