S9480ZCS4AZI1 – Galaxy S26 Ultra firmware
Build S9480ZCS4AZI1 is a security update for the Galaxy S26 Ultra (SM-S9480)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Sep 21, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 4, so downgrading to the previous build S9480ZHS4AZHL is still possible. Samsung still serves this file.
- Model
- SM-S9480
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 4
- First released
- Sep 21, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received S9480ZCS4AZI1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHC | China | Sep 21, 2026 | day 0 | S9480ZCS4AZI1/S9480CHC4AZI1/S9480ZCS4AZI1 |
Download and release notes
samloader download -m SM-S9480 -r CHC -v S9480ZCS4AZI1/S9480CHC4AZI1/S9480ZCS4AZI1Samsung's release notes and security patch level for this update: SM-S9480 / CHC on doc.samsungmobile.com. What each part of the build number means: decode S9480ZCS4AZI1.