M315FXXS4CWK8 – Galaxy M31 firmware
Build M315FXXS4CWK8 is a security update for the Galaxy M31 (SM-M315F)
on Android 12 (One UI 4). It first appeared on Samsung's servers on Nov 28, 2023 (method) and has reached
6 regions so far. It keeps bootloader bit 4, so downgrading to the previous build M315FXXS4CWK3 is still possible. Samsung still serves this file.
- Model
- SM-M315F
- Android
- Android 12
- Type
- Security
- Bootloader bit
- 4
- First released
- Nov 28, 2023
- Regions
- 6
Rollout timeline by region
The date each region code (CSC) first received M315FXXS4CWK8, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
BVO | Bolivia | Nov 28, 2023 | day 0 | M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8 |
COO | Colombia | Nov 28, 2023 | day 0 | M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8 |
PEO | Peru | Nov 28, 2023 | day 0 | M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8 |
UYO | Uruguay | Nov 28, 2023 | day 0 | M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8 |
ZTO | Brazil | Nov 28, 2023 | day 0 | M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8 |
CHO | Chile | Dec 12, 2023 | +14 days | M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8 |
Download and release notes
samloader download -m SM-M315F -r BVO -v M315FXXS4CWK8/M315FOWO4CWK8/M315FDDS4CWK8Samsung's release notes and security patch level for this update: SM-M315F / BVO on doc.samsungmobile.com. What each part of the build number means: decode M315FXXS4CWK8.