F946NKSS6GZH5 – Galaxy Z Fold5 firmware
Build F946NKSS6GZH5 is a security update for the Galaxy Z Fold5 (SM-F946N)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Aug 31, 2026 (method) and has reached
4 regions so far. It keeps bootloader bit 6, so downgrading to the previous build F946NTBS6GZH5 is still possible. Samsung still serves this file.
- Model
- SM-F946N
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 6
- First released
- Aug 31, 2026
- Regions
- 4
Rollout timeline by region
The date each region code (CSC) first received F946NKSS6GZH5, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
KOO | South Korea | Aug 31, 2026 | day 0 | F946NKSS6GZH5/F946NOKR6GZH5/F946NKSU6GZDN |
KTC | South Korea (KT) | Aug 31, 2026 | day 0 | F946NKSS6GZH5/F946NOKR6GZH5/F946NKSU6GZDN |
LUC | South Korea (LG U+) | Aug 31, 2026 | day 0 | F946NKSS6GZH5/F946NOKR6GZH5/F946NKSU6GZDN |
SKC | South Korea (SKT) | Aug 31, 2026 | day 0 | F946NKSS6GZH5/F946NOKR6GZH5/F946NKSU6GZDN |
Download and release notes
samloader download -m SM-F946N -r KOO -v F946NKSS6GZH5/F946NOKR6GZH5/F946NKSU6GZDNSamsung's release notes and security patch level for this update: SM-F946N / KOO on doc.samsungmobile.com. What each part of the build number means: decode F946NKSS6GZH5.