Download Samsung Firmware SM-A366B
Samsung Galaxy A36 5G
The latest firmware for Samsung Galaxy A36 5G (SM-A366B) is A366BXXUCDZIF with Android 17, released on October 19, 2026 for 46 regions (CSC). Every official firmware build for SM-A366B, newest first: one row per build with all regions (CSC) that received it.
- Latest build
- A366BXXUCDZIF
- Builds
- 20 builds
- Regions (CSC)
- 46 regions
Firmware builds for SM-A366B
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 46 regions
- 19 regions
- 27 regions
- 30 regions
- 30 regions
- 19 regions
- GLBMM1SINSTHTHLXID+6
- 15 regions
- 15 regions
- 30 regions
- 30 regions
SM-A366B update history
SM-A366B 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, A366BXXUCDZIF, was released on October 19, 2026 with the September 2026 security patch. Over the last 12 months SM-A366B received 13 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 23, 2031.
Device specifications
- Launched with
- Android 15
- Display diagonal
- 17 cm (6.7")
- Display resolution
- 1080 x 2340 pixels
- Processor family
- Snapdragon
- RAM
- 6 GB
- Rear camera resolution
- 50 MP
- Rear camera type
- Triple camera
- SIM cards
- Dual SIM
- Battery capacity
- 5000 mAh
- Weight
- 195 g
Changelog for SM-A366B
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.
• 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.
• Security
The device is protected with improved security.
These changes may vary depending on the model, country, or network operator of the customer environment.
Show 18 older builds
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.
• 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.
• 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.
• Stability and reliability
Device behavior has been improved.
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.
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.
• 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.
• 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.
• Security
The device is protected with improved security.
These changes may vary depending on the model, country, or network operator of the customer environment.
• Press and hold the Side button to access Google Gemini
The Side button is a new way to access Google Gemini or other digital assistant app quickly instead of using the corner swipe. You can change what the Side button does in Settings.
• Complete multiple tasks with one ask
Google Gemini is now seamlessly integrated with Samsung apps such as Calendar, Notes, Reminder, and Clock. You can complete tasks in these apps using information from Gemini with one simple command. Try asking Google Gemini...
1 retail code (SKU)
Box codes of SM-A366B for different colors and markets. Firmware is chosen by the model code SM-A366B and your region (CSC), not by the SKU.
- SM-A366BZABEUB
Frequently Asked Questions
What is the latest Android version for SM-A366B?
The newest firmware for SM-A366B runs Android 17: build A366BXXUCDZIF, released on October 19, 2026.
When did SM-A366B get its last update?
The latest build for SM-A366B, A366BXXUCDZIF, was released on October 19, 2026 (5 days ago).
How often does SM-A366B get updates?
Over the last 12 months SM-A366B received 13 builds, with at least one new build in 9 different months.
Is the firmware for SM-A366B official?
Yes, all firmware files for SM-A366B are 100% official, original, and obtained directly from Samsung servers.
How to flash Samsung SM-A366B using Odin?
To flash SM-A366B, 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-A366B?
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-A366B.