F956USQS4DZF2 – Galaxy Z Fold6 firmware
Build F956USQS4DZF2 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 Jun 18, 2026 (method) and has reached
7 regions so far. It keeps bootloader bit 4, so downgrading to the previous build F956USQS4DZE1 is still possible. Samsung still serves this file.
- Model
- SM-F956U
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 4
- First released
- Jun 18, 2026
- Regions
- 7
Rollout timeline by region
The date each region code (CSC) first received F956USQS4DZF2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
VZW | USA (Verizon) | Jun 18, 2026 | day 0 | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
XAA | USA (unlocked) | Jun 18, 2026 | day 0 | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
TMB | USA (T-Mobile) | Jun 21, 2026 | +3 days | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
TMK | USA (MetroPCS) | Jun 21, 2026 | +3 days | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
ATT | USA (AT&T) | Jun 21, 2026 | +3 days | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
CCT | USA (Comcast) | Jun 22, 2026 | +4 days | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
USC | USA (US Cellular) | Jun 27, 2026 | +9 days | F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2 |
Download and release notes
samloader download -m SM-F956U -r XAA -v F956USQS4DZF2/F956UOYN4DZF2/F956USQS4DZF2Samsung'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 F956USQS4DZF2.