F956USQU4EZIH – Galaxy Z Fold6 firmware
Build F956USQU4EZIH is a feature update for the Galaxy Z Fold6 (SM-F956U)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Oct 11, 2026 (method) and has reached
7 regions so far. It keeps bootloader bit 4, so downgrading to the previous build F956USQS4DZH5 is still possible. Samsung still serves this file.
- Model
- SM-F956U
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 4
- First released
- Oct 11, 2026
- Regions
- 7
Rollout timeline by region
The date each region code (CSC) first received F956USQU4EZIH, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
TMK | USA (MetroPCS) | Oct 11, 2026 | day 0 | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
TMB | USA (T-Mobile) | Oct 11, 2026 | day 0 | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
USC | USA (US Cellular) | Oct 11, 2026 | day 0 | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
ATT | USA (AT&T) | Oct 11, 2026 | day 0 | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
VZW | USA (Verizon) | Oct 12, 2026 | +1 day | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
XAA | USA (unlocked) | Oct 13, 2026 | +2 days | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
CCT | USA (Comcast) | Oct 13, 2026 | +2 days | F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIH |
Download and release notes
samloader download -m SM-F956U -r XAA -v F956USQU4EZIH/F956UOYN4EZIH/F956USQU4EZIHSamsung'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 F956USQU4EZIH.