Galaxy S26 Ultra

Download Samsung Firmware SM-S948B

Samsung Galaxy S26 Ultra

The latest firmware for Samsung Galaxy S26 Ultra (SM-S948B) is S948BXXS4BZIG with Android 17, released on September 29, 2026 for 78 regions (CSC). Every official firmware build for SM-S948B, newest first: one row per build with all regions (CSC) that received it.

Latest build
S948BXXS4BZIG Android 17 · 1 month ago
Builds
20 builds
Regions (CSC)
87 regions

Firmware builds for SM-S948B

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/S948BXXS4BZIG

SM-S948B update history

SM-S948B started on Android 16 and has received 1 major Android upgrade; it now runs Android 17. The upgrade to Android 17 started rolling out on September 29, 2026. The newest build, S948BXXS4BZIG, was released on September 29, 2026 with the October 2026 security patch. Over the last 12 months SM-S948B received 20 builds, spread over 8 different months. Builds of this model reach 87 regions (CSC); MXO (Mexico) usually gets a new build first (80% of recent builds). Samsung guarantees security updates for this model until February 24, 2033.

Device specifications

Launched with
Android 16.0
Display diagonal
17.5 cm (6.9")
Display resolution
3120 x 1440 pixels
Processor frequency
3.6 GHz
Processor family
Snapdragon
Processor model
8 Elite Gen 5
RAM
12 GB
Rear camera resolution
200 MP
Rear camera type
Quad camera
SIM cards
Dual SIM
Battery capacity
5000 mAh
Weight
214 g

Changelog for SM-S948B

• 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 9
Galaxy AI

Enhanced Now nudge
Now nudge provides helpful suggestions in more places throughout your Galaxy experience. In addition to the keyboard, suggestions will now appear in conversation notifications and in a floating button in the bottom right corner of the screen. There are also several new types of suggestions, like entering reservation details or addresses and saving places in Google Maps.

Focus on someone important
My FanCam lets you select a person in a video and follow...

• 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 14 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.

• 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.

• Overall stability of functions improved.
• The security of your device has been improved.

• Overall stability of functions improved.
• The security of your device 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.

• Security
The device is protected with improved security.

These changes may vary depending on the model, country, or network operator of the customer environment.

• Overall stability of functions improved.
• The security of your device 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.

1 retail code (SKU)

Box codes of SM-S948B for different colors and markets. Firmware is chosen by the model code SM-S948B and your region (CSC), not by the SKU.

  • SM-S948BZDGEUB

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-S948B?

The newest firmware for SM-S948B runs Android 17: build S948BXXS4BZIG, released on September 29, 2026.

When did SM-S948B get its last update?

The latest build for SM-S948B, S948BXXS4BZIG, was released on September 29, 2026 (25 days ago).

How often does SM-S948B get updates?

Over the last 12 months SM-S948B received 20 builds, with at least one new build in 8 different months.

Is the firmware for SM-S948B official?

Yes, all firmware files for SM-S948B are 100% official, original, and obtained directly from Samsung servers.

How to flash Samsung SM-S948B using Odin?

To flash SM-S948B, 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-S948B?

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-S948B.