Galaxy S23

Download Samsung Firmware SM-S911U

Samsung Galaxy S23

The latest firmware for Samsung Galaxy S23 (SM-S911U) is S911USQU8GZIF with Android 17, released on October 19, 2026 for 10 regions (CSC). Every official firmware build for SM-S911U, newest first: one row per build with all regions (CSC) that received it.

Latest build
S911USQU8GZIF Android 17 · 28 days ago
Builds
71 builds
Regions (CSC)
12 regions

Firmware builds for SM-S911U

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/S911USQU8GZIF

SM-S911U update history

SM-S911U started on Android 13 and has received 4 major Android upgrades; it now runs Android 17. The upgrade to Android 17 started rolling out on October 19, 2026. The newest build, S911USQU8GZIF, was released on October 19, 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-S911U received 19 builds, with a new build in 11 of those months, in line with Samsung's monthly security updates. Builds of this model reach 12 regions (CSC); ATT (United States) usually gets a new build first (100% of recent builds). Samsung guarantees security updates for this model until January 26, 2028.

Device specifications

Launched with
Android 13
Display diagonal
15.5 cm (6.1")
Display resolution
2340 x 1080 pixels
RAM
8 GB
Rear camera resolution
50 MP
Rear camera type
Triple camera
Battery capacity
3900 mAh
Weight
168 g

Specifications of SM-S911B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

Changelog for SM-S911U

One UI 9
Galaxy AI

Interpreter keeps your conversation in front of you
In conversation mode, you can scroll through the whole conversation while you’re still talking.

Productivity and multitasking

More customizable quick panel
You can now rearrange and customize the controls in your quick panel even more than before. You can change the size of the brightness and volume sliders as well as the media player. You can also separate the sound mode button from the volume slider.

Privacy, sec...

• 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...

• 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.

Translate emergency alerts
Never miss importa...

Show 12 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.

Translate emergency alerts
Never miss importa...

• 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 7.0 Upgrade (Android 15)
Galaxy AI

Write like a pro
Let Galaxy AI help you with writing tasks by tapping the 4-star icon that appears whenever you select text. You can correct spelling and grammar, change tone, summarize, or apply formatting. You can even start with a short snippet and let the AI do the writing for you.

Transcribe and summarize recorded calls
It's easier than ever to review the content of your recorded calls in the Samsung Phone app. You can view the entire conversat...

• The security of your device has been improved.

One UI 7.0 Upgrade (Android 15)
Galaxy AI

Write like a pro
Let Galaxy AI help you with writing tasks by tapping the 4-star icon that appears whenever you select text. You can correct spelling and grammar, change tone, summarize, or apply formatting. You can even start with a short snippet and let the AI do the writing for you.

Transcribe and summarize recorded calls
It's easier than ever to review the content of your recorded calls in the Samsung Phone app. You can view the entire conversat...

· The security of your device has been improved.

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-S911U?

The newest firmware for SM-S911U runs Android 17: build S911USQU8GZIF, released on October 19, 2026.

When did SM-S911U get its last update?

The latest build for SM-S911U, S911USQU8GZIF, was released on October 19, 2026 (8 days ago).

How often does SM-S911U get updates?

Over the last 12 months SM-S911U received 19 builds, with at least one new build in 11 different months.

Is the firmware for SM-S911U official?

Yes, all firmware files for SM-S911U are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-S911U using Odin?

To flash SM-S911U, 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-S911U?

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-S911U.