F971BXXS3AZIK – Galaxy Z Fold8 firmware

Build F971BXXS3AZIK is a security update for the Galaxy Z Fold8 (SM-F971B) on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 12, 2026 (method) and has reached 1 region so far. It keeps bootloader bit 3, so downgrading to the previous build F971BXXU3AZI7 is still possible. Samsung still serves this file.

Model
SM-F971B
Android
Android 17
Type
Security
Bootloader bit
3
First released
Oct 12, 2026
Regions
1

Rollout timeline by region

The date each region code (CSC) first received F971BXXS3AZIK, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
EGYEgyptOct 12, 2026day 0F971BXXS3AZIK/F971BOXM3AZIK/F971BXXU3AZI7

Download and release notes

samloader download -m SM-F971B -r EGY -v F971BXXS3AZIK/F971BOXM3AZIK/F971BXXU3AZI7

Samsung's release notes and security patch level for this update: SM-F971B / EGY on doc.samsungmobile.com. What each part of the build number means: decode F971BXXS3AZIK.