G955FXXUCDZEA – Galaxy S8+ firmware
Build G955FXXUCDZEA is a feature update for the Galaxy S8+ (SM-G955F)
on Android 9. It first appeared on Samsung's servers on Aug 12, 2026 (method) and has reached
5 regions so far. It keeps bootloader bit 12, so downgrading to the previous build G955FXXUCDZE9 is still possible. Samsung still serves this file.
- Model
- SM-G955F
- Android
- Android 9
- Type
- Feature
- Bootloader bit
- 12
- First released
- Aug 12, 2026
- Regions
- 5
Rollout timeline by region
The date each region code (CSC) first received G955FXXUCDZEA, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
AUT | Switzerland | Aug 12, 2026 | day 0 | G955FXXUCDZEA/G955FOXMCDZC3/G955FXXUCDUD1 |
NEE | Nordic countries | Aug 12, 2026 | day 0 | G955FXXUCDZEA/G955FOXMCDZC3/G955FXXUCDVB1 |
PHN | Netherlands | Aug 12, 2026 | day 0 | G955FXXUCDZEA/G955FOXMCDZC5/G955FXXUCDUD1 |
SWC | Switzerland | Aug 12, 2026 | day 0 | G955FXXUCDZEA/G955FOVFCDZC3/G955FXXUCDUD1 |
VDF | Netherlands (Vodafone) | Aug 12, 2026 | day 0 | G955FXXUCDZEA/G955FOVFCDZC3/G955FXXUCDUD1 |
Download and release notes
samloader download -m SM-G955F -r AUT -v G955FXXUCDZEA/G955FOXMCDZC3/G955FXXUCDUD1Samsung's release notes and security patch level for this update: SM-G955F / AUT on doc.samsungmobile.com. What each part of the build number means: decode G955FXXUCDZEA.