F956U1UES4DZF2 – Galaxy Z Fold6 firmware

Build F956U1UES4DZF2 is a security update for the Galaxy Z Fold6 (SM-F956U1) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 21, 2026 (method) and has reached 14 regions so far. It keeps bootloader bit 4, so downgrading to the previous build F956U1UES4DZE1 is still possible. Samsung still serves this file.

Model
SM-F956U1
Android
Android 16
Type
Security
Bootloader bit
4
First released
Jun 21, 2026
Regions
14

Rollout timeline by region

The date each region code (CSC) first received F956U1UES4DZF2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
TMKUSA (MetroPCS)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
XARUSA (Cellular South)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
ACGUSA (C Spire)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
AIOUSA (Cricket)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
ATTUSA (AT&T)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
LRAUSA (Bluegrass)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
TFNUSA (TracFone)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
USCUSA (US Cellular)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
VZWUSA (Verizon)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
XAAUSA (unlocked)Jun 21, 2026day 0F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
DSHUSAJun 22, 2026+1 dayF956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
DSAUSAJun 22, 2026+1 dayF956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2
CCTUSA (Comcast)Jun 22, 2026+1 dayF956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2

Download and release notes

samloader download -m SM-F956U1 -r XAA -v F956U1UES4DZF2/F956U1OYM4DZF2/F956U1UES4DZF2

Samsung's release notes and security patch level for this update: SM-F956U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode F956U1UES4DZF2.