Galaxy S25

Samsung Galaxy S25 SM-S931U firmware

The latest firmware for Samsung Galaxy S25 (SM-S931U) is S931USQUDDZJB with Android 17, released on November 5, 2026 for 13 regions (CSC). Every official firmware build for SM-S931U, newest first: one row per build with all regions (CSC) that received it.

Latest build
S931USQUDDZJB Android 17 · 23 days ago
Builds
28 builds
Regions (CSC)
13 regions

Firmware builds for SM-S931U

Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/S931USQUDDZJB

SM-S931U update history

SM-S931U started on Android 15 and has received 2 major Android upgrades; it now runs Android 17. The upgrade to Android 17 started rolling out on October 5, 2026. The newest build, S931USQUDDZJB, was released on November 5, 2026 with the October 2026 security patch. That patch (SMR Oct-2026) fixes 62 vulnerabilities, 9 of them critical. Over the last 12 months SM-S931U received 15 builds, with a new build in 12 of those months, in line with Samsung's monthly security updates. Builds of this model reach 13 regions (CSC); USC (United States) usually gets a new build first (100% of recent builds). Samsung guarantees security updates for this model until January 12, 2032.

Device specifications

Launched with
Android 15
Display diagonal
15.8 cm (6.2")
Display resolution
2340 x 1080 pixels
RAM
12 GB
Rear camera resolution
50 MP
Rear camera type
Triple camera
Battery capacity
4000 mAh
Weight
162 g

Specifications of SM-S931B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Changelog for SM-S931U

• Stability and reliability
Device behavior has been improved.
• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

One UI 9
Galaxy AI

Enhanced Now nudge
Now nudge provides helpful suggestions in more places throughout your Galaxy experience. In addition to the keyboard, suggestions will now appear in conversation notifications and in a floating button in the bottom right corner of the screen. There are also several new types of suggestions, like entering reservation details or addresses and saving places in Google Maps.

Focus on someone important
My FanCam lets you select a person in a video and follow...

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

One UI 8.5
Visual design

Fresh new look
One UI seamlessly integrates into your daily routine by combining immersive visuals with meaningful personalization for a more refined and sophisticated design. Transparent blur effects add depth and make content easier to navigate, while floating elements react organically to your workflow for a more focused experience. Through familiar and intuitive data visualization, One UI delivers a design that feels both personal and relatable, helping you focus...

Show 19 older builds

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

One UI 8.0 (Android 16)
Galaxy AI

See calls on the screen
Call captions show what each person says on the screen in real time during calls. Follow the conversation on your screen to make sure you don’t miss anything.

Create unique pet portraits
Bring out your pet's personality with Portrait studio. You can now apply portrait effects to pictures of dogs and cats in addition to people. Choose from styles like Fisheye lens, oil painting, and more.

Clean up sound
Use Audio eraser to automatica...

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Security

The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• The security of your device has been improved.

• Security
The device is protected with improved security.

• Stability and reliability
Device behavior has been improved.
• Security
The device is protected with improved security.

· The security of your device has been improved.

New firmware for other devices

All latest builds

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Frequently Asked Questions

What is the latest Android version for SM-S931U?

The newest firmware for SM-S931U runs Android 17: build S931USQUDDZJB, released on November 5, 2026.

When did SM-S931U get its last update?

The latest build for SM-S931U, S931USQUDDZJB, was released on November 5, 2026 (8 days ago).

How often does SM-S931U get updates?

Over the last 12 months SM-S931U received 15 builds, with at least one new build in 12 different months.

Is the firmware for SM-S931U official?

Yes, all firmware files for SM-S931U are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-S931U using Odin?

To flash SM-S931U, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.

Can I downgrade the Android version on SM-S931U?

Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing SM-S931U.

Is this the stock ROM or flash file for SM-S931U?

Yes. Every build on this page is the official stock ROM for SM-S931U from Samsung's update server, the same package other sites call the flash file or the software update. It installs with Odin on a Windows PC.

Does flashing firmware remove the FRP lock on SM-S931U?

No. Factory Reset Protection is tied to the Google account that was on the phone and survives a firmware flash. Sign in with that account or use the legal options in our FRP guide.