A5560ZCSIDZI3 – Galaxy A55 5G firmware
Build A5560ZCSIDZI3 is a security update for the Galaxy A55 5G (SM-A5560)
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 raises the bootloader bit from 16 to 18: once installed, the device no longer accepts firmware with bit 16 or lower, so a downgrade to A5560ZCSGDZG2 is blocked. Samsung still serves this file.
- Model
- SM-A5560
- Android
- Android 16
- Type
- Security
- Bootloader bit
- 18
- First released
- Sep 21, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received A5560ZCSIDZI3, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHC | China | Sep 21, 2026 | day 0 | A5560ZCSIDZI3/A5560CHCIDZI3/A5560ZCSIDZI3 |
Download and release notes
samloader download -m SM-A5560 -r CHC -v A5560ZCSIDZI3/A5560CHCIDZI3/A5560ZCSIDZI3Samsung's release notes and security patch level for this update: SM-A5560 / CHC on doc.samsungmobile.com. What each part of the build number means: decode A5560ZCSIDZI3.