G316MUBU0API4 – Galaxy Ace 4 firmware

Build G316MUBU0API4 is a feature update for the Galaxy Ace 4 (SM-G316M) on Android 4. It first appeared on Samsung's servers on Oct 17, 2016 (method) and has reached 5 regions so far. It keeps bootloader bit 0, so downgrading to the previous build G316MUBU0APE4 is still possible. Samsung has pulled this build: the file is no longer served (what this means).

Model
SM-G316M
Android
Android 4
Type
Feature
Bootloader bit
0
First released
Oct 17, 2016
Regions
5

Rollout timeline by region

The date each region code (CSC) first received G316MUBU0API4, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ZTOBrazilOct 17, 2016day 0G316MUBU0API4/G316MZTO0API4/G316MUBU0API4
COOColombiaOct 21, 2016+4 daysG316MUBU0API4/G316MUUB0API4/G316MUBU0API4
TPAPanamaOct 27, 2016+10 daysG316MUBU0API4/G316MUUB0API4/G316MUBU0API4
CHOChileNov 1, 2016+15 daysG316MUBU0API4/G316MUUB0API4/G316MUBU0API4
TTTTrinidad & TobagoNov 1, 2016+15 daysG316MUBU0API4/G316MUUB0API4/G316MUBU0API4

Download and release notes

samloader download -m SM-G316M -r ZTO -v G316MUBU0API4/G316MZTO0API4/G316MUBU0API4

Samsung's release notes and security patch level for this update: SM-G316M / ZTO on doc.samsungmobile.com. What each part of the build number means: decode G316MUBU0API4.