F7310ZSS9GZI1 – Galaxy Z Flip5 firmware

Build F7310ZSS9GZI1 is a security update for the Galaxy Z Flip5 (SM-F7310) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 29, 2026 (method) and has reached 2 regions so far. It keeps bootloader bit 9, so downgrading to the previous build F7310ZCS9GZI1 is still possible. Samsung still serves this file.

Model
SM-F7310
Android
Android 16
Type
Security
Bootloader bit
9
First released
Sep 29, 2026
Regions
2

Rollout timeline by region

The date each region code (CSC) first received F7310ZSS9GZI1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BRITaiwanSep 29, 2026day 0F7310ZSS9GZI1/F7310OZS9GZI1/F7310ZCS9GZI1
TGYHong KongSep 29, 2026day 0F7310ZSS9GZI1/F7310OZS9GZI1/F7310ZCS9GZI1

Download and release notes

samloader download -m SM-F7310 -r BRI -v F7310ZSS9GZI1/F7310OZS9GZI1/F7310ZCS9GZI1

Samsung's release notes and security patch level for this update: SM-F7310 / BRI on doc.samsungmobile.com. What each part of the build number means: decode F7310ZSS9GZI1.