A720FXXU9CZB4 – Galaxy A7 2017 firmware
Build A720FXXU9CZB4 is a feature update for the Galaxy A7 2017 (SM-A720F)
on Android 8. It first appeared on Samsung's servers on Apr 27, 2026 (method) and has reached
1 region so far. It keeps bootloader bit 9, so downgrading to the previous build A720FXXU9CZC1 is still possible. Samsung still serves this file.
- Model
- SM-A720F
- Android
- Android 8
- Type
- Feature
- Bootloader bit
- 9
- First released
- Apr 27, 2026
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received A720FXXU9CZB4, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
MXO | Mexico | Apr 27, 2026 | day 0 | A720FXXU9CZB4/A720FUUB9CZB5/A720FXXS9CTL1 |
Download and release notes
samloader download -m SM-A720F -r MXO -v A720FXXU9CZB4/A720FUUB9CZB5/A720FXXS9CTL1Samsung's release notes and security patch level for this update: SM-A720F / MXO on doc.samsungmobile.com. What each part of the build number means: decode A720FXXU9CZB4.