Samsung Galaxy M31 (SM-M315F) — XEF
Samsung Galaxy M31 Released 2020, March 05 | 191g, 8.9mm thickness | Android 10, up to Android 12, One UI 4.1 | 64GB/128GB storage, microSDXC | Super AMOLED, 420 nits (peak) | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens | Li-Po 6000 mAh
Samsung Galaxy M31 Network Specifications
| Speed | HSPA, LTE |
| 4G | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 |
| 3G | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G | GSM 850 / 900 / 1800 / 1900 |
| Technology | GSM / HSPA / LTE |
Samsung Galaxy M31 body Specifications
| SIM | Nano-SIM + Nano-SIM |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Weight | 191 g (6.74 oz) |
| Dimensions | 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) |
Samsung Galaxy M31 MISC Specifications
| SAR EU | 0.48 W/kg (head) 1.13 W/kg (body) |
| SAR US | 0.52 W/kg (head) 0.69 W/kg (body) |
| Colors | Ocean Blue, Space Black, Red |
Samsung Galaxy M31 display Specifications
| Protection | Corning Gorilla Glass 3 |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) |
| Size | 6.4 inches, 100.5 cm 2 (~84.1% screen-to-body ratio) |
| Type | Super AMOLED, 420 nits (peak) |
Samsung Galaxy M31 Sound Specifications
| 3.5mm jack | Yes |
| Loudspeaker | Yes |
Samsung Galaxy M31 Platform Specifications
| GPU | Mali-G72 MP3 |
| CPU | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| Chipset | Exynos 9611 (10 nm) |
| OS | Android 10, upgradable to Android 12, One UI 4.1 |
Samsung Galaxy M31 Battery Specifications
| Charging | 15W wired |
| Battery | Li-Po 6000 mAh |
Samsung Galaxy M31 memory Specifications
| Internal | 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM |
| Card slot | microSDXC (dedicated slot) |
Samsung Galaxy M31 Main Camera Specifications
| Video | 4K@30fps, 1080p@30fps, gyro-EIS |
| Features | LED flash, panorama, HDR |
| Camera | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens |
XEF Region Firmware Info
XEF - FranceA CSC (Consumer Software Customization) code ties a Samsung firmware build to the country and carrier it was released for, controlling branding, available languages and which OTA updates a device receives. The XEF code is used in France by Orange, Bouygues Telecom, Free Mobile, with 2 distinct Samsung Galaxy M31 firmware versions found so far.
XEF Firmware Version History
| Version | Build Date | Security Patch |
|---|---|---|
| M315FXXS4CWK7 | 2023-11-15 | — |
| M315FXXS4CWK5 | 2023-11-15 | — |
2 Samsung Galaxy M31 firmware versions found for the XEF region, newest first.
Samsung Galaxy M31 XEF Firmware ArchiveOfficial Samsung Galaxy M31 firmware for the France XEF region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.
Samsung Galaxy M31 Combination & Special FilesCombination and service files for the Samsung Galaxy M31 (SM-M315F) — authorized repair, FRP reset after service, and diagnostics.
| Device Mobile | Version | Bit - SW REV | FA | Change list | Updated | Status |
|---|---|---|---|---|---|---|
XEF Firmware FAQ
Which carriers use the XEF CSC on the Samsung Galaxy M31?+
The XEF CSC is used by Orange, Bouygues Telecom, and Free Mobile in France. Flash the XEF firmware only if your device was sold through one of these carriers.
How many Samsung Galaxy M31 firmware versions are available for the XEF region?+
2 distinct Samsung Galaxy M31 firmware versions have been found for the XEF (France) region so far, from oldest to the latest build.
How is the XEF CSC different from other region codes?+
Samsung ties every firmware build to one of roughly 599 CSC (Consumer Software Customization) codes, each tied to a specific country and carrier. XEF is the code for France (Orange, Bouygues Telecom, and Free Mobile) — flashing a different CSC can change your carrier branding, available languages and which OTA updates you receive.