F956USQS4DZG3 – Galaxy Z Fold6 firmware

Build F956USQS4DZG3 is a security update for the Galaxy Z Fold6 (SM-F956U) on Android 16 (One UI 8). It first appeared on Samsung's servers on Jul 19, 2026 (method) and has reached 7 regions so far. It keeps bootloader bit 4, so downgrading to the previous build F956USQS4DZF2 is still possible. Samsung still serves this file.

Model
SM-F956U
Android
Android 16
Type
Security
Bootloader bit
4
First released
Jul 19, 2026
Regions
7

Rollout timeline by region

The date each region code (CSC) first received F956USQS4DZG3, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
TMBUSA (T-Mobile)Jul 19, 2026day 0F956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3
TMKUSA (MetroPCS)Jul 19, 2026day 0F956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3
CCTUSA (Comcast)Jul 19, 2026day 0F956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3
VZWUSA (Verizon)Jul 19, 2026day 0F956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3
XAAUSA (unlocked)Jul 19, 2026day 0F956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3
ATTUSA (AT&T)Jul 20, 2026+1 dayF956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3
USCUSA (US Cellular)Jul 22, 2026+3 daysF956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3

Download and release notes

samloader download -m SM-F956U -r XAA -v F956USQS4DZG3/F956UOYN4DZG3/F956USQS4DZG3

Samsung's release notes and security patch level for this update: SM-F956U / XAA on doc.samsungmobile.com. What each part of the build number means: decode F956USQS4DZG3.