Galaxy A55 5G

Download Samsung Firmware SM-A556B

Samsung Galaxy A55 5G

The latest firmware for Samsung Galaxy A55 5G (SM-A556B) is A556BXXUIEZJ1 with Android 17, released on October 26, 2026 for 17 regions (CSC). Every official firmware build for SM-A556B, newest first: one row per build with all regions (CSC) that received it.

Latest build
A556BXXUIEZJ1 Android 17 · 23 days ago
Builds
34 builds
Regions (CSC)
17 regions

Firmware builds for SM-A556B

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/A556BXXUIEZJ1

SM-A556B update history

SM-A556B started on Android 14 and has received 3 major Android upgrades; it now runs Android 17. The upgrade to Android 17 started rolling out on October 26, 2026. The newest build, A556BXXUIEZJ1, was released on October 26, 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-A556B received 14 builds, with a new build in 11 of those months, in line with Samsung's monthly security updates. Samsung guarantees security updates for this model until March 26, 2029.

Device specifications

Launched with
Android 14
Display diagonal
16.8 cm (6.6")
Display resolution
1080 x 2340 pixels
Processor frequency
2 GHz
RAM
8 GB
Rear camera resolution
50 MP
Rear camera type
Triple camera
SIM cards
Hybrid dual SIM
Battery capacity
5000 mAh
Weight
213 g

Changelog for SM-A556B

One UI 9
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, security, and device protection

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.

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)
Productivity

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...

Show 15 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.

• 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)
Bold new look

Visual enhancements
Enjoy a more sophisticated and unique look. One UI 7 introduces a stunning redesign to key components including buttons, menus, notifications and control bars, providing a more consistent visual experience with curves and circles. Beautiful new colors, soft animations, and an innovative blur effect that's unique to One UI make information hierarchy clearer and help you focus on important information.

Reimagined Home screen
Fr...

• Security
The device is protected with improved security.

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

• Security
The device is protected with improved security.

• Circle to Search
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.
• Security
The device is protected with improved security.
※ After this update, the notification for choosing a search engine or a browser and search engine will appear in the notification panel. When you tap this notification, you can select the...

• Security
The device is protected with improved security.

1 retail code (SKU)

Box codes of SM-A556B for different colors and markets. Firmware is chosen by the model code SM-A556B and your region (CSC), not by the SKU.

  • SM-A556BZYCEUE

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-A556B?

The newest firmware for SM-A556B runs Android 17: build A556BXXUIEZJ1, released on October 26, 2026.

When did SM-A556B get its last update?

The latest build for SM-A556B, A556BXXUIEZJ1, was released on October 26, 2026 (today).

How often does SM-A556B get updates?

Over the last 12 months SM-A556B received 14 builds, with at least one new build in 11 different months.

Is the firmware for SM-A556B official?

Yes, all firmware files for SM-A556B are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-A556B using Odin?

To flash SM-A556B, 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-A556B?

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-A556B.