SM-A315G 13 countries Android 11

Samsung Galaxy A31 A315GDXU1CUI1 Firmware

Name: Samsung Galaxy A31 (SM-A315G)
Brand: Samsung
Availability: InStock

Samsung Galaxy A31 A315GDXU1CUI1 is an Android 11 firmware for 13 countries, 21 CSC codes. It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build A315GXXU1CUH3 https://samfirm.shop/build/A315GXXU1CUH3, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-A315G is available: A315GDXU5DXJ6 https://samfirm.shop/build/A315GDXU5DXJ6.

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Android 11

OS Version

2021-09-16

First release

other regions until 2021-10-12

2021-08-01

Security patch

Countries

CSC codes

Bootloader binary

Bootloader binary 1. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy A31 use bootloader binary 5 (latest: A315GDXU5DXJ6). If your device already runs binary 5, this build cannot be flashed.

All regional downloads

Pick your region (CSC) to download the matching firmware package.

Will it work on my device?

Paste your current build number from Settings > About phone (About tablet) > Software information, or the output of *#1234#.

Not sure which one to download?

Your CSC is in Settings → About phone (About tablet) → Software information, or dial *#1234#. The CSC sets your region's features and network bands. Download the firmware for your country.

MODEM/CP Version: A315GDXU1CUI1

Model	Region	CSC Version	Build Date	Release date	Size	File name
SM-A315G	CAM Cambodia GLB, SMA, XTC Philippines LAO Laos MM1, SIN, STH, XSP Singapore +6 more countries MYM Myanmar (Burma) NZC, TNZ, VNZ, XNZ New Zealand THL Thailand XME Malaysia XXV Vietnam XNF	A315GOLM1CUI1	2021-09-27	2021-09-22	4.754 GiB	SM-A315G_1_20210907131506_8hpwyavzit_fac.zip
SM-A315G	PNG Papua New Guinea	A315GPNG1CUI1	2021-09-24	2021-09-27	4.548 GiB	SM-A315G_1_20210907131206_fsia7ajrc0_fac.zip
SM-A315G	VFJ Fiji	A315GVFJ1CUI1	2021-09-24	2021-09-27	4.597 GiB	SM-A315G_1_20210907131436_k1sw1fe517_fac.zip
SM-A315G	XID Indonesia	A315GOLE1CUI1	2021-10-12	2021-10-14	4.628 GiB	SM-A315G_1_20210907131635_ivuhgjj38u_fac.zip

How to flash A315GDXU1CUI1

A315GDXU1CUI1 has bootloader binary 1. Your device must run binary 1 or lower: it is the 5th character from the end of your current build number.
CSC: Use CSC for a clean install, to change the region (CSC code), to downgrade or to repair a device that does not boot.
HOME_CSC: Use HOME_CSC to update the same model and region while keeping your data. Back up anyway: a failed update can still require a reset.
The Download Mode key combo depends on the model: see all combos.

Full flashing guide

Beware: Manually flashing firmwares may brick your device. Use it at your own risk and follow our tutorial steps.

What's new in A315GDXU1CUI1

· Device stability improvements, bug fixes.
· New and / or enhanced features.
· Further improvements to performance.

Rollout of A315GDXU1CUI1 by region

First release: September 22, 2021
Last region: October 14, 2021
Duration: 23 days
Regions: 21

Day 1 · 22 September · 9 regions
CambodiaCAMLaosLAOMalaysiaXMEMyanmar (Burma)MYMPhilippinesGLBSMAXTCThailandTHLVietnamXXV
Day 6 · 27 September · 7 regions
FijiVFJNew ZealandNZCTNZVNZXNZPapua New GuineaPNGXNF
Day 8 · 29 September · 4 regions
SingaporeMM1SINSTHXSP
Day 23 · 14 October · 1 region
IndonesiaXID

Device specifications

Display diagonal16.3 cm (6.4")
Display resolution2400 x 1080 pixels
Display typeSAMOLED
Processor frequency2 GHz
RAM4 GB
Rear camera resolution48 MP
Rear camera typeQuad camera
Battery capacity5000 mAh
Weight185 g

Frequently Asked Questions

A315GDXU1CUI1 is Android 11 firmware for Samsung Galaxy A31, released for 13 countries, 21 CSC codes. It includes the 2021-08-01 security patch. Samsung built it on 2021-09-16.

No. A newer build for SM-A315G is available: A315GDXU5DXJ6. Install it instead of A315GDXU1CUI1 unless you need this exact version. The previous build was A315GXXU1CUH3.

Download the package for your region (CSC) and unzip it. In Odin, load each file into the slot with the same name: BL, AP, CP (if the package has one) and CSC, or HOME_CSC to keep your data. Odin checks the built-in checksum of every .tar.md5 file before flashing. The Samsung Galaxy A31 must be on bootloader binary 1 or lower.

This build uses bootloader binary 1. It can be flashed on a Samsung Galaxy A31 running binary 1 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 92 other builds of this model use the same binary, so you can switch between them in both directions.