
Samsung Galaxy S26 Ultra
The latest firmware for Samsung Galaxy S26 Ultra (SM-S948W) is S948WVLS4BZIG with Android 17, released on October 9, 2026 for 17 regions (CSC). Every official firmware build for SM-S948W, 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/S948WVLS4BZIG
SM-S948W 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, S948WVLS4BZIG, was released on October 9, 2026 with the October 2026 security patch. That patch (SMR Oct-2026) fixes 62 vulnerabilities, 9 of them critical. Over the last 12 months SM-S948W received 11 builds, spread over 8 different months. Samsung guarantees security updates for this model until February 26, 2033.
Specifications of SM-S948B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.
• Security
The device is protected with improved security.
These changes may vary depending on the model, country, or network operator of the customer environment.
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.
• 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.
• 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.

SM-S948U

SM-S947W

SM-S942W

SM-S937U

SM-S931BE
The newest firmware for SM-S948W runs Android 17: build S948WVLS4BZIG, released on October 9, 2026.
The latest build for SM-S948W, S948WVLS4BZIG, was released on October 9, 2026 (17 days ago).
Over the last 12 months SM-S948W received 11 builds, with at least one new build in 8 different months.
Yes, all firmware files for SM-S948W are 100% official, original, and obtained directly from Samsung servers.
To flash SM-S948W, 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-S948W.