SC55BOMS1EYK1 – Galaxy Z Fold3 5G firmware
Build SC55BOMS1EYK1 is a security update for the Galaxy Z Fold3 5G (SC-55B)
on Android 15 (One UI 7). It first appeared on Samsung's servers on Feb 10, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 1, so downgrading to the previous build SC55BOMU1EYF4 is still possible. Samsung still serves this file.
- Model
- SC-55B
- Android
- Android 15
- Type
- Security
- Bootloader bit
- 1
- First released
- Feb 10, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received SC55BOMS1EYK1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
DCM | Japan (docomo) | Feb 10, 2026 | day 0 | SC55BOMS1EYK1/SC55BDCM1EYK1/SC55BOMS1EYK1 |
Download and release notes
samloader download -m SC-55B -r DCM -v SC55BOMS1EYK1/SC55BDCM1EYK1/SC55BOMS1EYK1Samsung's release notes and security patch level for this update: SC-55B / DCM on doc.samsungmobile.com. What each part of the build number means: decode SC55BOMS1EYK1.