F946U1UES8GZH5 – Galaxy Z Fold5 firmware

Build F946U1UES8GZH5 is a security update for the Galaxy Z Fold5 (SM-F946U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 2, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 8, so downgrading to the previous build F946U1UES8GZG3 is still possible. Samsung still serves this file.

Model
SM-F946U1
Android
Android 16
Type
Security
Bootloader bit
8
First released
Sep 2, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received F946U1UES8GZH5, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
AIOUSA (Cricket)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
ATTUSA (AT&T)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
CCTUSA (Comcast)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
DSAUSASep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
DSHUSASep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
LRAUSA (Bluegrass)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
TFNUSA (TracFone)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
TMBUSA (T-Mobile)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
TMKUSA (MetroPCS)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
USCUSA (US Cellular)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
VZWUSA (Verizon)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
XAAUSA (unlocked)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5
XARUSA (Cellular South)Sep 2, 2026day 0F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5

Download and release notes

samloader download -m SM-F946U1 -r XAA -v F946U1UES8GZH5/F946U1OYM8GZH5/F946U1UES8GZH5

Samsung's release notes and security patch level for this update: SM-F946U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode F946U1UES8GZH5.