J260MUUBS1AUB1 – Galaxy J2 Core firmware

Build J260MUUBS1AUB1 is a security update for the Galaxy J2 Core (SM-J260MU) on Android 8. It first appeared on Samsung's servers on Mar 24, 2021 (method) and has reached 4 regions so far. It keeps bootloader bit 1, so downgrading to the previous build J260MUUBS1AUB2 is still possible. Samsung still serves this file.

Model
SM-J260MU
Android
Android 8
Type
Security
Bootloader bit
1
First released
Mar 24, 2021
Regions
4

Rollout timeline by region

The date each region code (CSC) first received J260MUUBS1AUB1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CGUGuatemala (Claro)Mar 24, 2021day 0J260MUUBS1AUB1/J260MUOWM1ATB4/J260MUUBS1ATE3
UFNArgentina (Movistar)Mar 24, 2021day 0J260MUUBS1AUB1/J260MUOWT1ATB1/J260MUUBS1ATE3
PSNArgentina (Personal)Mar 30, 2021+6 daysJ260MUUBS1AUB1/J260MUOWB1ATK1/J260MUUBS1ATE3
TGPParaguayMar 30, 2021+6 daysJ260MUUBS1AUB1/J260MUOWM1ATB3/J260MUUBS1ATE3

Download and release notes

samloader download -m SM-J260MU -r CGU -v J260MUUBS1AUB1/J260MUOWM1ATB4/J260MUUBS1ATE3

Samsung's release notes and security patch level for this update: SM-J260MU / CGU on doc.samsungmobile.com. What each part of the build number means: decode J260MUUBS1AUB1.