
Samsung Galaxy A56 5G
The latest firmware for Samsung Galaxy A56 5G (SM-A566B) is A566BXXUEDZJ1 with Android 17, released on October 19, 2026 for 44 regions (CSC). Every official firmware build for SM-A566B, newest first: one row per build with all regions (CSC) that received it.
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/A566BXXUEDZJ1
SM-A566B 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 19, 2026. The newest build, A566BXXUEDZJ1, 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-A566B received 16 builds, with a new build in 9 of those months, in line with Samsung's monthly security updates. Samsung guarantees security updates for this model until March 25, 2032.
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.
Warranty and care
The new Warranty and care menu in settings lets you check your warranty information and access diagnostic checks a...
• Security
The device is protected with improved security.
These changes may vary depending on the model, country, or network operator of the customer environment.
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.
· Device stability improvements, bug fixes.
· New and / or enhanced features.
· Further improvements to performance.
• Security
The device is protected with improved security.
These changes may vary depending on the model, country, or network operator of the customer environment.
Check stock prices without unlocking
Stocks you follow on Google Finance with big price changes will appear on your Now bar at the end of the trading day.
Easier file sharing with Quick Share
It's never been easier to send and receive files. Tap the Quick Share button in quick settings to get started. You can receive files while the Quick Share screen is open and send files to others directly from Quick Share.
Sticky notes
Add quick annotations on top o...
• Security
The device is protected with improved security.
These changes may vary depending on the model, country, or network operator of the customer environment.
Box codes of SM-A566B for different colors and markets. Firmware is chosen by the model code SM-A566B and your region (CSC), not by the SKU.

SM-A566U

SM-A576U

SM-A556S

SM-A366BE

SM-A546S
The newest firmware for SM-A566B runs Android 17: build A566BXXUEDZJ1, released on October 19, 2026.
The latest build for SM-A566B, A566BXXUEDZJ1, was released on October 19, 2026 (7 days ago).
Over the last 12 months SM-A566B received 16 builds, with at least one new build in 9 different months.
Yes, all firmware files for SM-A566B are 100% official, original, and obtained directly from Samsung servers.
To flash SM-A566B, 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.
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-A566B.