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Samsung Galaxy S8+ (SM-G955FD) — Region ECT

Latest G955FXXUCDZE7 • Android 9 • Jun 2026

Samsung Galaxy S8+ (SM-G955FD) Firmware Overview

What is the latest SM-G955FD firmware?

G955FXXUCDZE7, released June 1, 2026 for region ECT with Android 9. It is a feature update on bootloader binary 12. The archive holds 1 official build for this region.

Is the Samsung Galaxy S8+ still getting updates?

Yes. The newest build is from June 2026.

Can I downgrade the SM-G955FD firmware?

Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 12:

SM-G955FD firmware for region ECT

Build / PDA Bit Region (CSC) Android Date Download Link
G955FXXUCDZE7
Feature update
12 ECT
9
2026-06-01 Download

How to Flash SM-G955FD Firmware

Put the Samsung Galaxy S8+ into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 12 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.