
The latest firmware for Samsung Galaxy S8+ (SM-G955N) is G955NKSU5DZE1 with Android 9, released on May 11, 2026 for 3 regions (CSC). Every official firmware build for SM-G955N, 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/G955NKSU5DZE1
SM-G955N started on Android 6 and has received 3 major Android upgrades; it now runs Android 9. The newest build, G955NKSU5DZE1, was released on May 11, 2026. Updates have become rare: SM-G955N received 1 build over the last 12 months, in 1 month.
Specifications of SM-G955F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-G955FD

SM-G950FD

SM-G850X

SM-G965W

SM-G960W
The newest firmware for SM-G955N runs Android 9: build G955NKSU5DZE1, released on May 11, 2026.
The latest build for SM-G955N, G955NKSU5DZE1, was released on May 11, 2026 (5 months ago).
Over the last 12 months SM-G955N received 1 build, with at least one new build in 1 month.
Yes, all firmware files for SM-G955N are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G955N, 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-G955N.
Yes. Every build on this page is the official stock ROM for SM-G955N 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.
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.