I939DKEUBOA1 – GALAXY S Ⅲ DUOS firmware

Build I939DKEUBOA1 is a – update for the GALAXY S Ⅲ DUOS (SCH-I939D) on Android 4. It first appeared on Samsung's servers on Jan 16, 2015 (method) and has reached 1 region so far. It raises the bootloader bit from 14 to 30: once installed, the device no longer accepts firmware with bit 14 or lower, so a downgrade to I939DKEAMD5 is blocked. Samsung still serves this file.

Model
SCH-I939D
Android
Android 4
Type
–
Bootloader bit
30
First released
Jan 16, 2015
Regions
1

Rollout timeline by region

The date each region code (CSC) first received I939DKEUBOA1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CTCChina (Telecom)Jan 16, 2015day 0I939DKEUBOA1/I939DCTCBOA1/I939DKEUBOA1

Download and release notes

samloader download -m SCH-I939D -r CTC -v I939DKEUBOA1/I939DCTCBOA1/I939DKEUBOA1

Samsung's release notes and security patch level for this update: SCH-I939D / CTC on doc.samsungmobile.com. What each part of the build number means: decode I939DKEUBOA1.