
Samsung Galaxy S21 FE 5G
The latest firmware for Samsung Galaxy S21 FE 5G (SM-G990B) is G990BXXSLIZH2 with Android 16, released on September 17, 2026 for 57 regions (CSC). Every official firmware build for SM-G990B, 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/G990BXXSLIZH2
SM-G990B started on Android 12 and has received 4 major Android upgrades; it now runs Android 16. The newest build, G990BXXSLIZH2, was released on September 17, 2026 with the August 2026 security patch. That patch (SMR Aug-2026) fixes 54 vulnerabilities, 8 of them critical. Over the last 12 months SM-G990B received 9 builds, spread over 6 different months. Samsung guarantees security updates for this model until January 27, 2027.
• 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.
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.
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.
• 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.
• The security of your device has been improved.
• Security
The device is protected with improved security.
• Regional LTE TDD band support has been updated.
Please note that models purchased in Germany cannot receive signals in LTE TDD bands in the following countries: Belgium, Denmark, Germany, France, Luxemburg, Netherlands, Austria, Poland, Switzerland, Czech Republic.
Effortlessly enhance your photos
Get special AI recommendations for enhancing your photos and videos. You'll find options for adding star trails, colorizing, and more. Suggestions appear when you tap the i button in Gallery.
Copy and paste from one image to another
Add a missing element to your picture. Just clip an object from an image in Gallery, then go to the image where you want to paste it and choose Paste from clipboard in the More options menu....
• Security
The device is protected with improved security.
Box codes of SM-G990B for different colors and markets. Firmware is chosen by the model code SM-G990B and your region (CSC), not by the SKU.

SM-G990W2

SM-G991Q

SM-G998N

SM-G996N

SM-G988Q
The newest firmware for SM-G990B runs Android 16: build G990BXXSLIZH2, released on September 17, 2026.
The latest build for SM-G990B, G990BXXSLIZH2, was released on September 17, 2026 (1 month ago).
Over the last 12 months SM-G990B received 9 builds, with at least one new build in 6 different months.
Yes, all firmware files for SM-G990B are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G990B, 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-G990B.