F766NKSSBBZG3 – Galaxy Z Flip7 firmware

Build F766NKSSBBZG3 is a security update for the Galaxy Z Flip7 (SM-F766N) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 8, 2026 (method) and has reached 4 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to F766NKSUABZF3 is blocked. Samsung still serves this file.

Model
SM-F766N
Android
Android 16
Type
Security
Bootloader bit
11
First released
Jul 8, 2026
Regions
4

Rollout timeline by region

The date each region code (CSC) first received F766NKSSBBZG3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
KOOSouth KoreaJul 8, 2026day 0F766NKSSBBZG3/F766NOKRBBZG3/F766NKSSBBZG1
KTCSouth Korea (KT)Jul 8, 2026day 0F766NKSSBBZG3/F766NOKRBBZG3/F766NKSSBBZG1
LUCSouth Korea (LG U+)Jul 8, 2026day 0F766NKSSBBZG3/F766NOKRBBZG3/F766NKSSBBZG1
SKCSouth Korea (SKT)Jul 8, 2026day 0F766NKSSBBZG3/F766NOKRBBZG3/F766NKSSBBZG1

Download and release notes

samloader download -m SM-F766N -r KOO -v F766NKSSBBZG3/F766NOKRBBZG3/F766NKSSBBZG1

Samsung's release notes and security patch level for this update: SM-F766N / KOO on doc.samsungmobile.com. What each part of the build number means: decode F766NKSSBBZG3.