G6100ZCU4CTA1 – Galaxy On7 firmware

Build G6100ZCU4CTA1 is a feature update for the Galaxy On7 (SM-G6100) on Android 8. It first appeared on Samsung's servers on Mar 31, 2020 (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 G6100ZHU3CSG1 is blocked. Samsung still serves this file.

Model
SM-G6100
Android
Android 8
Type
Feature
Bootloader bit
4
First released
Mar 31, 2020
Regions
1

Rollout timeline by region

The date each region code (CSC) first received G6100ZCU4CTA1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CHCChinaMar 31, 2020day 0G6100ZCU4CTA1/G6100CHC4CTA1/G6100ZCU4CTA1

Download and release notes

samloader download -m SM-G6100 -r CHC -v G6100ZCU4CTA1/G6100CHC4CTA1/G6100ZCU4CTA1

Samsung's release notes and security patch level for this update: SM-G6100 / CHC on doc.samsungmobile.com. What each part of the build number means: decode G6100ZCU4CTA1.