Galaxy S26 Ultra

Samsung Galaxy S26 Ultra SM-S948B firmware

The latest firmware for Samsung Galaxy S26 Ultra (SM-S948B) is S948BXXS6BZK1 with Android 17, released on November 12, 2026 for 49 regions (CSC). Every official firmware build for SM-S948B, newest first: one row per build with all regions (CSC) that received it.

Latest build
S948BXXS6BZK1 Android 17 · 11 days ago
Builds
22 builds
Regions (CSC)
90 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/S948BXXS6BZK1

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, S948BXXS6BZK1, was released on November 12, 2026 with the November 2026 security patch. That patch (SMR Nov-2026) fixes 198 vulnerabilities, 20 of them critical. Over the last 12 months SM-S948B received 22 builds, with a new build in 10 of those months, in line with Samsung's monthly security updates. Builds of this model reach 90 regions (CSC); MXO (Mexico) usually gets a new build first (80% of recent builds). Samsung guarantees security updates for this model until February 13, 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.

• 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.

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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.

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• 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 8 older builds

• 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.

• 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

New firmware for other devices

All latest builds

Similar Models

Frequently Asked Questions

What is the latest Android version for SM-S948B?

The newest firmware for SM-S948B runs Android 17: build S948BXXS6BZK1, released on November 12, 2026.

When did SM-S948B get its last update?

The latest build for SM-S948B, S948BXXS6BZK1, was released on November 12, 2026 (2 days ago).

How often does SM-S948B get updates?

Over the last 12 months SM-S948B received 22 builds, with at least one new build in 10 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.

Is this the stock ROM or flash file for SM-S948B?

Yes. Every build on this page is the official stock ROM for SM-S948B from Samsung's update server, the same package other sites call the flash file or the software update. It installs with Odin on a Windows PC.

Does flashing firmware remove the FRP lock on SM-S948B?

No. Factory Reset Protection is tied to the Google account that was on the phone and survives a firmware flash. Sign in with that account or use the legal options in our FRP guide.