G900MDUBS1CQB1 – GALAXY S5 firmware

Build G900MDUBS1CQB1 is a security update for the GALAXY S5 (SM-G900MD) on Android 6. It first appeared on Samsung's servers on Feb 27, 2017 (method) and has reached 1 region so far. It keeps bootloader bit 1, so downgrading to the previous build G900MDUBS1CQA3 is still possible. Samsung still serves this file.

Model
SM-G900MD
Android
Android 6
Type
Security
Bootloader bit
1
First released
Feb 27, 2017
Regions
1

Rollout timeline by region

The date each region code (CSC) first received G900MDUBS1CQB1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ZTOBrazilFeb 27, 2017day 0G900MDUBS1CQB1/G900MDZTO1CPE1/G900MDUBS1CQA1

Download and release notes

samloader download -m SM-G900MD -r ZTO -v G900MDUBS1CQB1/G900MDZTO1CPE1/G900MDUBS1CQA1

Samsung's release notes and security patch level for this update: SM-G900MD / ZTO on doc.samsungmobile.com. What each part of the build number means: decode G900MDUBS1CQB1.