M315FXXS4CXB1 – Galaxy M31 firmware
Build M315FXXS4CXB1 is a security update for the Galaxy M31 (SM-M315F)
on Android 12 (One UI 4). It first appeared on Samsung's servers on Mar 5, 2024 (method) and has reached
5 regions so far. It keeps bootloader bit 4, so downgrading to the previous build M315FXXS4CWK5 is still possible. Samsung still serves this file.
- Model
- SM-M315F
- Android
- Android 12
- Type
- Security
- Bootloader bit
- 4
- First released
- Mar 5, 2024
- Regions
- 5
Not yet released in 30 regions that are still on an older build: BTU, BVO, CHO, COO, DBT, EGY, ITV, KSA, MID, MWD, MXO, PAK, PEO, PHE and 16 more.
Rollout timeline by region
The date each region code (CSC) first received M315FXXS4CXB1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
SLK | Sri Lanka | Mar 5, 2024 | day 0 | M315FXXS4CXB1/M315FODM4CXB1/M315FDDS4CXB1 |
NPB | Nepal | Mar 5, 2024 | day 0 | M315FXXS4CXB1/M315FODM4CXB1/M315FDDS4CXB1 |
INS | India | Mar 5, 2024 | day 0 | M315FXXS4CXB1/M315FODM4CXB1/M315FDDS4CXB1 |
BKD | Bangladesh | Mar 5, 2024 | day 0 | M315FXXS4CXB1/M315FODM4CXB1/M315FDDS4CXB1 |
INU | India | Mar 5, 2024 | day 0 | M315FXXS4CXB1/M315FODI4CXB1/M315FDDS4CXB1 |
Download and release notes
samloader download -m SM-M315F -r INS -v M315FXXS4CXB1/M315FODM4CXB1/M315FDDS4CXB1Samsung's release notes and security patch level for this update: SM-M315F / INS on doc.samsungmobile.com. What each part of the build number means: decode M315FXXS4CXB1.