
Samsung Galaxy S8+
The latest firmware for Samsung Galaxy S8+ (SM-G955F) is G955FXXUCDZEJ with Android 9, released on June 24, 2026 for 11 regions (CSC). Every official firmware build for SM-G955F, 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/G955FXXUCDZEJ
SM-G955F started on Android 7 and has received 2 major Android upgrades; it now runs Android 9. The newest build, G955FXXUCDZEJ, was released on June 24, 2026 with the April 2021 security patch. Over the last 12 months SM-G955F received 14 builds, spread over 4 different months.
• Stability and reliability
Device behavior has been improved.
These changes may vary depending on the model, country, or network operator of the customer environment.
• GPS
The stability has been improved.
• The security of your device has been improved.
• GPS
The stability has been improved.
• The security of your device has been improved.
• GPS
The stability has been improved.
• The security of your device has been improved.
• Improved stability of the following applications or features: Google RCS (Rich Communication Services)
• Overall stability of your device has been improved.
• The security of your device has been improved.
• The following functions have been updated : Messages
• The following functions have been updated : Device care
• The security of your device has been improved.
• The security of your device has been improved.
• The following functions have been updated : Messages
• The following functions have been updated : Device care
• The security of your device has been improved.
· The security of your device has been improved.
- The latest Android security patch has been applied.
ㆍDevice security has been further enhanced.
· The security of your device has been improved.
Box codes of SM-G955F for different colors and markets. Firmware is chosen by the model code SM-G955F and your region (CSC), not by the SKU.

SM-G955FD

SM-G950FD

SM-G850X

SM-G965W

SM-G960W
The newest firmware for SM-G955F runs Android 9: build G955FXXUCDZEJ, released on June 24, 2026.
The latest build for SM-G955F, G955FXXUCDZEJ, was released on June 24, 2026 (4 months ago).
Over the last 12 months SM-G955F received 14 builds, with at least one new build in 4 different months.
Yes, all firmware files for SM-G955F are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G955F, 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-G955F.