G9300ZCS4CSB3 – Galaxy S7 firmware
Build G9300ZCS4CSB3 is a security update for the Galaxy S7 (SM-G9308)
on Android 8. It first appeared on Samsung's servers on Mar 22, 2019 (method) and has reached
1 region so far. It raises the bootloader bit from 3 to 4: once installed, the device no longer accepts firmware with bit 3 or lower, so a downgrade to G9300ZCS3CRJ2 is blocked. Samsung has pulled this build: the file is no longer served (what this means).
- Model
- SM-G9308
- Android
- Android 8
- Type
- Security
- Bootloader bit
- 4
- First released
- Mar 22, 2019
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received G9300ZCS4CSB3, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHM | China (Mobile) | Mar 22, 2019 | day 0 | G9300ZCS4CSB3/G9308CHM4CSB3/G9300ZCS4CSB3 |
Download and release notes
samloader download -m SM-G9308 -r CHM -v G9300ZCS4CSB3/G9308CHM4CSB3/G9300ZCS4CSB3Samsung's release notes and security patch level for this update: SM-G9308 / CHM on doc.samsungmobile.com. What each part of the build number means: decode G9300ZCS4CSB3.