G955FXXUCDZEG – Galaxy S8+ firmware
Build G955FXXUCDZEG is a feature update for the Galaxy S8+ (SM-G955FD)
on Android 9. It first appeared on Samsung's servers on Jun 25, 2026 (method) and has reached
6 regions so far. It keeps bootloader bit 12, so downgrading to the previous build G955FXXUCDZEF is still possible. Samsung still serves this file.
- Model
- SM-G955FD
- Android
- Android 9
- Type
- Feature
- Bootloader bit
- 12
- First released
- Jun 25, 2026
- Regions
- 6
Rollout timeline by region
The date each region code (CSC) first received G955FXXUCDZEG, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
COL | Colombia | Jun 25, 2026 | day 0 | G955FXXUCDZEG/G955FOWMCDZE1/G955FXXUCDUD1 |
ZTM | Brazil (TIM) | Jul 1, 2026 | +6 days | G955FXXUCDZEG/G955FOTMCDZE1/G955FXXUCDUD1 |
ZTA | Brazil (Claro) | Jul 2, 2026 | +7 days | G955FXXUCDZEG/G955FOWACDZE2/G955FXXUCDUD1 |
COO | Colombia | Jul 22, 2026 | +27 days | G955FXXUCDZEG/G955FOXMCDZF1/G955FXXUCDUD1 |
NBS | Latin America (open market) | Jul 22, 2026 | +27 days | G955FXXUCDZEG/G955FOWTCDZE1/G955FXXUCDUD1 |
TPA | Panama | Jul 22, 2026 | +27 days | G955FXXUCDZEG/G955FOXMCDZF1/G955FXXUCDUD1 |
Download and release notes
samloader download -m SM-G955FD -r COL -v G955FXXUCDZEG/G955FOWMCDZE1/G955FXXUCDUD1Samsung's release notes and security patch level for this update: SM-G955FD / COL on doc.samsungmobile.com. What each part of the build number means: decode G955FXXUCDZEG.