F966USQUABZF1 – Galaxy Z Fold7 firmware
Build F966USQUABZF1 is a feature update for the Galaxy Z Fold7 (SM-F966U)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 15, 2026 (method) and has reached
7 regions so far. It keeps bootloader bit 10, so downgrading to the previous build F966USQSABZE3 is still possible. Samsung still serves this file.
- Model
- SM-F966U
- Android
- Android 16
- Type
- Feature
- Bootloader bit
- 10
- First released
- Jun 15, 2026
- Regions
- 7
Rollout timeline by region
The date each region code (CSC) first received F966USQUABZF1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
ATT | USA (AT&T) | Jun 15, 2026 | day 0 | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
CCT | USA (Comcast) | Jun 15, 2026 | day 0 | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
TMB | USA (T-Mobile) | Jun 15, 2026 | day 0 | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
TMK | USA (MetroPCS) | Jun 15, 2026 | day 0 | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
VZW | USA (Verizon) | Jun 16, 2026 | +1 day | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
USC | USA (US Cellular) | Jun 22, 2026 | +7 days | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
XAA | USA (unlocked) | Jun 29, 2026 | +14 days | F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1 |
Download and release notes
samloader download -m SM-F966U -r XAA -v F966USQUABZF1/F966UOYNABZF1/F966USQUABZF1Samsung's release notes and security patch level for this update: SM-F966U / XAA on doc.samsungmobile.com. What each part of the build number means: decode F966USQUABZF1.