F9760ZCU3AZI9 – Galaxy Z Fold8 Ultra firmware
Build F9760ZCU3AZI9 is a feature update for the Galaxy Z Fold8 Ultra (SM-F9760)
on Android 17 (One UI 9). It first appeared on Samsung's servers on Sep 20, 2026 (method) and has reached
1 region so far. It raises the bootloader bit from 2 to 3: once installed, the device no longer accepts firmware with bit 2 or lower, so a downgrade to F9760ZSS2AZH7 is blocked. Samsung still serves this file.
- Model
- SM-F9760
- Android
- Android 17
- Type
- Feature
- Bootloader bit
- 3
- First released
- Sep 20, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received F9760ZCU3AZI9, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHC | China | Sep 20, 2026 | day 0 | F9760ZCU3AZI9/F9760CHC3AZI9/F9760ZCU3AZI1 |
Download and release notes
samloader download -m SM-F9760 -r CHC -v F9760ZCU3AZI9/F9760CHC3AZI9/F9760ZCU3AZI1Samsung's release notes and security patch level for this update: SM-F9760 / CHC on doc.samsungmobile.com. What each part of the build number means: decode F9760ZCU3AZI9.