A266USQU8CZEA – Galaxy A26 5G firmware
Build A266USQU8CZEA is a feature update for the Galaxy A26 5G (SM-A266U)
on Android 16 (One UI 8). It first appeared on Samsung's servers on Jun 2, 2026 (method) and has reached
2 regions so far. It keeps bootloader bit 8, so downgrading to the previous build A266USQS8BZD4 is still possible. Samsung still serves this file.
- Model
- SM-A266U
- Android
- Android 16
- Type
- Feature
- Bootloader bit
- 8
- First released
- Jun 2, 2026
- Regions
- 2
Rollout timeline by region
The date each region code (CSC) first received A266USQU8CZEA, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CCT | USA (Comcast) | Jun 2, 2026 | day 0 | A266USQU8CZEA/A266UOYN8CZEA/A266USQU8CZEA |
USC | USA (US Cellular) | Jun 8, 2026 | +6 days | A266USQU8CZEA/A266UOYN8CZEA/A266USQU8CZEA |
Download and release notes
samloader download -m SM-A266U -r CCT -v A266USQU8CZEA/A266UOYN8CZEA/A266USQU8CZEASamsung's release notes and security patch level for this update: SM-A266U / CCT on doc.samsungmobile.com. What each part of the build number means: decode A266USQU8CZEA.