
Samsung Galaxy Tab Active4 Pro 5G
The latest firmware for Samsung Galaxy Tab Active4 Pro 5G (SM-T636B) is T636BXXSBDZH4 with Android 15, released on September 3, 2026 for 22 regions (CSC). Every official firmware build for SM-T636B, 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/T636BXXSBDZH4
SM-T636B started on Android 12 and has received 3 major Android upgrades; it now runs Android 15. The newest build, T636BXXSBDZH4, was released on September 3, 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-T636B received 4 builds, spread over 4 different months. Samsung guarantees security updates for this model until September 25, 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.
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...
· The security of your device has been improved.
• The security of your device has been improved.
· The security of your device has been improved.
• Stability and reliability
Device behavior has been improved.
• Security
The device is protected with improved security.
• The security of your device has been improved.
• Security
The device is protected with improved security.
• Stability and reliability
Device behavior has been improved.
New wallpaper editing features
Decorate your wallpaper however you like. When you select an image to use as your wallpaper, you can now apply frames and effects.
Customize alarm alerts
Use an image, video, or AR emoji to create your own custom alert screens for each alarm. You can even change the layout of where the alarm information appears on the screen.
More stickers to personalize your calendar
You can now add up to 2 stickers for each date on y...
• 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.
• Security
The device is protected with improved security.
• The security of your device has been improved.
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 ap...
• The security of your device has been improved.
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 ap...
Better app previews on the Recents screen
The Recents screen now shows apps as they will appear after you open them. You can easily see if an app is opened in split screen, full screen, or as a pop-up.
Easily switch from pop-up view to split screen
Press and hold the handle at the top of the pop-up window, then drag the app to the side of the screen where you want it to be shown.
Restore pop-ups snapped to the edge of the screen
Drag an app in pop-up view to...
• The security of your device has been improved.
• Stability and reliability
Device behavior has been improved.
· Device stability improvements, bug fixes.
· New and / or enhanced features.
· Further improvements to performance.
Box codes of SM-T636B for different colors and markets. Firmware is chosen by the model code SM-T636B and your region (CSC), not by the SKU.

SM-T636N

SM-T630

SM-T537A

SM-T530X

SM-T733
The newest firmware for SM-T636B runs Android 15: build T636BXXSBDZH4, released on September 3, 2026.
The latest build for SM-T636B, T636BXXSBDZH4, was released on September 3, 2026 (1 month ago).
Over the last 12 months SM-T636B received 4 builds, with at least one new build in 4 different months.
Yes, all firmware files for SM-T636B are 100% official, original, and obtained directly from Samsung servers.
To flash SM-T636B, 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-T636B.