✓ Verified Hardware SM-S911B 🔧 Stock Rom 📅 Sep 02, 2026

Samsung Galaxy S23 (SM-S911B) Factory Stock Firmware – Version S911BXXSAFZH3 for Android 16

Verified firmware package • 15 GB • Released Sep 02, 2026 • Compatible with Android 16 • Stable Production Build.

⚡ Download Stock Firmware

SM-S911B

Download genuine Galaxy S23 stock firmware update (S911BXXSAFZH3). This package contains the verified, unmodified factory ROM for model SM-S911B (Region: India (INS)), released directly by Samsung.

Firmware Package Specifications

Device: Galaxy S23
Model Code: SM-S911B
Region / CSC: India (INS)
PDA / Build Number: S911BXXSAFZH3
Operating System: Android 16
Security Patch Level: 2026-08-05
Release Date: 2026-09-02
Archive File Size: 14.88 GB (15,972,037,040 bytes)

Manufacturer Changelog & Security Fixes

Security
The device is protected with improved security.

Odin 4-File Flashing Slots

This firmware package includes all 4 standard factory Odin partitions for safe system recovery and unbricking:

BL (Bootloader): Flashes the bootloader and primary hardware initialization tables.
AP (System Image): Contains the system OS, vendor files, and One UI user interface.
CP (Modem / Phone): Flashes the cellular baseband radio and Wi-Fi modem firmware.
CSC (Carrier Config): Select CSC_* to perform a clean factory wipe, or select HOME_CSC_* to upgrade firmware without losing your photos, apps, or settings.

Quick flashing overview for Galaxy S23

Download & Extract: Download the verified S911BXXSAFZH3 package for Galaxy S23 (SM-S911B) and extract the tar.md5 binaries.
Boot Download Mode: Turn off device. Hold Volume Down + Volume Up simultaneously while connecting the USB-C cable to your PC, then press Volume Up at the turquoise warning screen.
Odin Slot Mapping: Open Odin 3.14.4 as Administrator. Assign BL, AP, CP, and CSC slots (HOME_CSC to preserve personal data, or CSC for a clean factory wipe).
Execute & Reboot: Click Start in Odin. Await the green PASS! confirmation (approx. 4–7 minutes) until your device automatically restarts.

Verified Master Guide ⏱️ 7 min read

Need the Complete Odin Firmware Flashing Guide?

Follow our verified, in-depth tutorial with detailed visual steps, prerequisite checklists, Download Mode instructions, and solutions for common errors.

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Platform Note: These instructions apply to systems running Android 16. Verify compatibility before proceeding.

Compatibility and scope

File type: Firmware
Version: S911BXXSAFZH3
Supported OS: Android 16
System architecture: ARM64-V8A
Download size: 15 GB
Release date: Sep 02, 2026

Samsung Galaxy S23 (SM-S911B) firmware version S911BXXSAFZH3 (Galaxy S23 Factory Stock Firmware) supports Android 16 on ARM64-V8A systems.

📜 Galaxy S23 Firmware Release History & Changelog Archive

Firmware update chronicle, OS version progression, and security patch trajectory for SM-S911B (Region: India (INS)):

48 Verified Builds

💡 Click Changelog details to expand verified release notes (Scroll horizontally on smaller screens →)

Build Number (PDA) & Changelog	Android OS	Release Date	Security Patch	Status
S911BXXSAFZH3 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Sep 02, 2026	🛡️ Aug 2026	✓ Active
S911BXXSAFZG1 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Jul 28, 2026	🛡️ Jul 2026	Previous
S911BXXSAFZF5 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Jun 29, 2026	🛡️ Jun 2026	Previous
S911BXXSAFZE1 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	May 28, 2026	🛡️ May 2026	Previous
S911BXXU9FZDP Changelog details (10 notes) 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 on what matters. Galaxy AI Continuous image generation Keep creating without stopping. Photo Assist now lets you generate AI images using different features from the results screen without saving each iteration. When you’re done, you can review all your creations in your history and pick your favorites. Bixby Smarter device control Talk to Bixby in your own words. Bixby is now better at finding the setting or feature you need, even if you don’t use exact commands or feature names. Just say what you need and let Bixby do the rest.	Android 16	May 21, 2026	🛡️ Apr 2026	Previous
S911BXXS9EZCI Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Apr 16, 2026	🛡️ Apr 2026	Previous
S911BXXS9EZC1 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Mar 30, 2026	🛡️ Mar 2026	Previous
S911BXXS9EZB6 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Mar 05, 2026	🛡️ Feb 2026	Previous
S911BXXS8EZA1 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Jan 27, 2026	🛡️ Jan 2026	Previous
S911BXXS8EYK5 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Dec 23, 2025	🛡️ Dec 2025	Previous
S911BXXS8EYK2 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Nov 20, 2025	🛡️ Nov 2025	Previous
S911BXXS8EYJ3 Changelog details (2 notes) Security The device is protected with improved security.	Android 16	Oct 29, 2025	🛡️ Oct 2025	Previous
S911BXXU8EYI5 Changelog details (10 notes) 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 important alerts even if they’re not in your language. When you receive an emergency alert in a language that’s different from your system language, Galaxy AI will automatically translate it for you. Faster AI select No more waiting. When you start AI select, you can now select an area of the screen immediately.	Android 16	Oct 06, 2025	🛡️ Sep 2025	Previous
S911BXXS8DYI3 Changelog details (2 notes) Security The device is protected with improved security.	Android 15	Sep 18, 2025	🛡️ Sep 2025	Previous
S911BXXS8DYG5 Changelog details (2 notes) Security The device is protected with improved security.	Android 15	Aug 21, 2025	🛡️ Aug 2025	Previous
S911BXXS8DYG1 Changelog details (2 notes) Security The device is protected with improved security.	Android 15	Jul 23, 2025	🛡️ Jul 2025	Previous
S911BXXS8DYF1 Changelog details (2 notes) Security The device is protected with improved security.	Android 15	Jun 25, 2025	🛡️ Jun 2025	Previous
S911BXXS8DYDB Changelog details (1 notes) · The security of your device has been improved.	Android 15	May 28, 2025	🛡️ May 2025	Previous
S911BXXU8DYD9 Changelog details (10 notes) 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 conversation as a text transcript on the Recents screen or summarize the transcript for quick review. Availability of this feature may vary depending on your country, region, or lauguage. Effortlessly create images Drawing assist makes it easier than ever to create fun images. Start with a simple sketch, add an image, or type in what you want to create. You can generate images in a variety of different styles. Read webpage highlights aloud Listen to highlights from articles and websites as you browse, or queue up top stories from a news site for seamless listening in Samsung Internet. Some websites may not be supported.	Android 15	Apr 28, 2025	🛡️ Apr 2025	Previous
S911BXXS8CYBD Changelog details (1 notes) The security of your device has been improved.	Android 14	Mar 18, 2025	🛡️ Mar 2025	Previous
S911BXXU8CYB4 Changelog details (4 notes) Stability and reliability Device behavior has been improved. Security The device is protected with improved security.	Android 14	Feb 25, 2025	🛡️ Feb 2025	Previous
S911BXXS7CXL2 Changelog details (4 notes) Auto Blocker After the update, when “Auto Blocker” is on with “Maximum restrictions”, USB devices will not be allowed to connect to this device except charging. Security The device is protected with improved security.	Android 14	Jan 14, 2025	🛡️ Jan 2025	Previous
S911BXXS7CXK6 Changelog details (4 notes) Auto Blocker After the update, when “Auto Blocker” is on with “Maximum restrictions”, USB devices will not be allowed to connect to this device except charging. Security The device is protected with improved security.	Android 14	Dec 17, 2024	🛡️ Dec 2024	Previous
S911BXXU7CXK4 Changelog details (4 notes) Stability and reliability Device behavior has been improved. Security The device is protected with improved security.	Android 14	Dec 02, 2024	🛡️ Nov 2024	Previous
S911BXXS6CXI4 Changelog details (1 notes) The security of your device has been improved.	Android 14	Oct 14, 2024	🛡️ Oct 2024	Previous
S911BXXS6CXHA Changelog details (1 notes) The security of your device has been improved.	Android 14	Sep 24, 2024	🛡️ Sep 2024	Previous
S911BXXU6CXH7 Changelog details (10 notes) One UI Update Galaxy AI Turn simple sketches into awesome images Start with a simple drawing, choose your style, and let Galaxy AI transform it into a captivating work of art. Sketch to image is available in Samsung Notes, Photo Editor, Smart select, and the Edge panels. Create unique portraits With a wide variety of AI-generated portrait styles, you can create a whole new look for your own profile image in Contacts or someone else’s, or use Photo Editor to invent something new for any of your photos that have faces in them. Let your phone do the writing for you When you need to write something, whether it’s a text, an email, or a social media post, you can start by giving Samsung Keyboard's new Composer a short request or snippet of text, then let Galaxy AI do the rest. Translate calls in more apps Simply talk over the phone and get translation in real time, helping you break down language barriers. And now, in addition to the Samsung Phone app, you can get real-time translation in supported voice calling apps like Google Meet and WhatsApp. During a call, tap Live translate in the quick panel to start translating.	Android 14	Sep 16, 2024	🛡️ Aug 2024	Previous
S911BXXS6CXG8 Changelog details (1 notes) The security of your device has been improved.	Android 14	Aug 12, 2024	🛡️ Aug 2024	Previous
S911BXXS6CXFC Changelog details (1 notes) The security of your device has been improved.	Android 14	Jul 15, 2024	🛡️ Jul 2024	Previous
S911BXXS5CXE7 Changelog details (1 notes) The security of your device has been improved.	Android 14	Jun 17, 2024	🛡️ Jun 2024	Previous
S911BXXS5CXDE Changelog details (1 notes) The security of your device has been improved.	Android 14	May 17, 2024	🛡️ May 2024	Previous
S911BXXS3CXD2 Changelog details (1 notes) The security of your device has been improved.	Android 14	Apr 15, 2024	🛡️ Apr 2024	Previous
S911BXXU3CXCF Changelog details (10 notes) One UI 6.1 Upgrade Galaxy AI Instantly search for anything on your screen Circle to Search with Google lets you easily learn more about anything shown on your screen without switching apps. Just touch and hold the Home button or navigation handle, then circle anything on the screen to start a Google search. Translate phone calls in real time Need to call someone who doesn't speak your language? No problem! Live translate provides real-time translation during calls. The other person on the call can hear what you say in their language, and you can hear their responses in your language. Translations will also appear on the screen. Translate in-person conversations The new Interpreter feature lets you translate a conversation any time you need to talk to someone who speaks another language. You can access Interpreter easily from the quick panel. Both people can hear translations read out loud in addition to reading them on the screen. Translate text in pictures, signs, documents, and more Instantly translate text wherever you find it. Just point your camera at the text you want to translate, then tap the T button to show more options. You can also translate text that appears in images in your Gallery.	Android 14	Mar 28, 2024	🛡️ Mar 2024	Previous
S911BXXS3BXBD Changelog details (1 notes) The security of your device has been improved.	Android 14	Mar 12, 2024	🛡️ Mar 2024	Previous
S911BXXS3BXAD Changelog details (1 notes) The security of your device has been improved.	Android 14	Feb 13, 2024	🛡️ Feb 2024	Previous
S911BXXS3BWL3 Changelog details (1 notes) The security of your device has been improved.	Android 14	Jan 12, 2024	🛡️ Jan 2024	Previous
S911BXXS3BWKC Changelog details (1 notes) The security of your device has been improved.	Android 14	Dec 12, 2023	🛡️ Dec 2023	Previous
S911BXXS3BWK5 Changelog details (1 notes) The security of your device has been improved.	Android 14	Nov 13, 2023	🛡️ Nov 2023	Previous
S911BXXU3BWJM Changelog details (10 notes) One UI 6.0 Upgrade Quick panel New button layout The quick panel has a new layout that makes it easier to access the features you use most. Wi-Fi and Bluetooth now have their own dedicated buttons at the top of the screen, while visual features, like Dark mode and Eye comfort shield have been moved to the bottom. Other quick settings buttons appear in a customizable area in the middle. Instantly access the full quick panel By default, a compact quick panel with notifications appears when you swipe down from the top of the screen. Swiping down again hides notifications and shows the expanded quick panel. If you turn on Quick settings instant access, you can view the expanded quick panel by swiping just once from the right side of the top of the screen. Swiping down from the left side shows notifications. Quickly access brightness control The brightness control bar now appears by default in the compact quick panel when you swipe down once from the top of the screen for quicker and easier brightness adjustments. Improved album art display While playing music or videos, album art will cover the entire media controller in the notification panel if the app playing the music or video provides album art.	Android 14	Oct 31, 2023	🛡️ Oct 2023	Previous
S911BXXS3AWIG Changelog details (1 notes) The security of your device has been improved.	Android 13	Oct 11, 2023	🛡️ Oct 2023	Previous
S911BXXS3AWI1 Changelog details (1 notes) The security of your device has been improved.	Android 13	Sep 15, 2023	🛡️ Sep 2023	Previous
S911BXXU3AWH3 Changelog details (4 notes) Stability and reliability Device behavior has been improved. Security The device is protected with improved security.	Android 13	Aug 17, 2023	🛡️ Aug 2023	Previous
S911BXXS3AWF9 Changelog details (1 notes) The security of your device has been improved.	Android 13	Jul 13, 2023	🛡️ Jul 2023	Previous
S911BXXU2AWF3 Changelog details (4 notes) Stability and reliability Device behavior has been improved. Security The device is protected with improved security.	Android 13	Jun 28, 2023	🛡️ Jun 2023	Previous
S911BXXS1AWD1 Changelog details (1 notes) The security of your device has been improved.	Android 13	May 03, 2023	🛡️ May 2023	Previous
S911BXXU1AWC8 Changelog details (4 notes) Stability and reliability Device behavior has been improved. Security The device is protected with improved security.	Android 13	Apr 05, 2023	🛡️ Apr 2023	Previous
S911BXXS1AWBM Changelog details (1 notes) The security of your device has been improved.	Android 13	Mar 11, 2023	🛡️ Mar 2023	Previous
S911BXXU1AWBD Changelog details (2 notes) Overall stability of functions improved. The security of your device has been improved.	Android 13	Feb 21, 2023	🛡️ Feb 2023	Previous

Support & Repair Information

🛠️ Need Hardware Repair or Diagnostic Assistance?

If your Galaxy S23 is experiencing physical damage, battery degradation, screen flickering, charging port faults, or motherboard issues that cannot be resolved through software or user manuals, contact support assistance:

💻 Screen & Display Repair Original AMOLED/LCD display replacement with genuine parts.

🔋 Battery Replacement Certified battery health diagnostics and fresh battery replacement.

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📞 Care Helpline & Booking Schedule a doorstep pickup or speak with a certified technician.

📋 Package Specifications & Build Details

Verified firmware binary structure and component tags for Galaxy S23:

✓ Verified Build

Build Number (PDA) S911BXXSAFZH3

CSC Build Code S911BOXMAFZH3

Baseband / Modem (CP) S911BXXSAFZE1

Operating System Android 16

Release Date September 02, 2026

Security Patch Level 🛡️ August 2026

Package Format 📦 4-File Factory Binary (.zip)

Total Package Size 💾 14.88 GB

Archive Structure & Odin Slot Guide

BL: Bootloader binary

AP: System core & recovery

CP: Modem & baseband

CSC: Regional carrier configuration

✨ Build Highlights

Security
The device is protected with improved security.

Frequently asked questions

Quick Answers

When should I update firmware on Galaxy S23?

One UI firmware updates provide Android security patches, new operating system features, bug fixes, and battery optimizations.

How can I update firmware on Galaxy S23?

You can update over-the-air (OTA) via Settings → Software update, or perform a complete verified system update via PC using Samsung Smart Switch.

Will updating firmware erase my user data?

Standard OTA and Smart Switch updates preserve your user data. However, performing a full backup before major OS updates is always recommended.

Download Galaxy S23 Factory Stock Firmware

Verified package for Galaxy S23 • Version S911BXXSAFZH3 • Released Sep 02, 2026:

⚡ High-Speed Download (15 GB) 📱 Odin-Ready ZIP 📦 4-File Factory Binary 🌐 Dual Cloud Mirrors

🔒 SHA-256 Verified ⚡ Fast Cloud Delivery 🛡️ 100% Clean & Verified ✓ Factory Stock Package

⚡

Odin Flashing Toolkit & Slot Guide

✓ Official 4-File Binary

To flash this official stock ROM package on Galaxy S23 (SM-S911B), use the verified companion tools and slot mapping below:

🛠️ Odin Flash Tool v3.14.4 Official Windows flashing utility for Samsung Android firmware.

Download & Guide →

🔌 Samsung USB Driver Enables PC detection in Download Mode (Odin ID:COM port).

Download USB Drivers →

🛡️ Samsung Smart Switch Full desktop device backup before performing a firmware flash.

Download Smart Switch →

Odin 4-File Slot Mapping

BL (Bootloader) Select file starting with BL_...

AP (System Image) Select file starting with AP_...

CP (Modem / Radio) Select file starting with CP_...

CSC or HOME_CSC HOME_CSC retains data; CSC wipes device.

⚠️ Pro Caution: Ensure your battery is charged above 50% and do not unplug the USB cable until the green PASS! message appears in Odin.

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Hardware & Repair Support

Experiencing Hardware Damage or Component Failure on Galaxy S23?

If software flashing or driver installation does not resolve your device issue, compare genuine screen, battery, and motherboard replacement costs or visit a verified Samsung service center.

💰 View Spare Parts Price → 📍 Locate Service Center →

Authorized Repair Network

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