
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 |
THL Region Firmware Info
A 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 THL code is used in Thailand by AIS, DTAC, True Move, Real Future, CAT, Cellcard, Smart, Qb, Metfone, Beeline, with 2 distinct Samsung Galaxy M31 firmware versions found so far.
THL Firmware Version History
| Version | Build Date | Security Patch |
|---|---|---|
| M315FXXS4CXB1 | 2024-02-13 | — |
| M315FXXS4CWK6 | 2023-11-15 | — |
2 Samsung Galaxy M31 firmware versions found for the THL region, newest first.
Official Samsung Galaxy M31 firmware for the Thailand THL region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.
Combination 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 |
|---|---|---|---|---|---|---|
THL Firmware FAQ
Which carriers use the THL CSC on the Samsung Galaxy M31?+
The THL CSC is used by AIS, DTAC, True Move, Real Future, CAT, Cellcard, Smart, Qb, Metfone, and Beeline in Thailand. Flash the THL firmware only if your device was sold through one of these carriers.
How many Samsung Galaxy M31 firmware versions are available for the THL region?+
2 distinct Samsung Galaxy M31 firmware versions have been found for the THL (Thailand) region so far, from oldest to the latest build.
How is the THL 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. THL is the code for Thailand (AIS, DTAC, True Move, Real Future, CAT, Cellcard, Smart, Qb, Metfone, and Beeline) — flashing a different CSC can change your carrier branding, available languages and which OTA updates you receive.
