J810MUBU3CUK1 – Galaxy J8 firmware

Build J810MUBU3CUK1 is a feature update for the Galaxy J8 (SM-J810M) on Android 10. It first appeared on Samsung's servers on Jan 3, 2022 (method) and has reached 4 regions so far. It keeps bootloader bit 3, so downgrading to the previous build J810MUBU3CUH1 is still possible. Samsung still serves this file.

Model
SM-J810M
Android
Android 10
Type
Feature
Bootloader bit
3
First released
Jan 3, 2022
Regions
4

Rollout timeline by region

The date each region code (CSC) first received J810MUBU3CUK1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CHOChileJan 3, 2022day 0J810MUBU3CUK1/J810MOWO3CUK1/J810MUBU3CUL1
CHTChile (Movistar)Jan 3, 2022day 0J810MUBU3CUK1/J810MOWT3CUH1/J810MUBU3CUL1
CHXChileFeb 15, 2022+43 daysJ810MUBU3CUK1/J810MOWE3CUK1/J810MUBU3CUL1
CHEChile (Entel)Feb 15, 2022+43 daysJ810MUBU3CUK1/J810MOWE3CUK1/J810MUBU3CUL1

Download and release notes

samloader download -m SM-J810M -r CHO -v J810MUBU3CUK1/J810MOWO3CUK1/J810MUBU3CUL1

Samsung's release notes and security patch level for this update: SM-J810M / CHO on doc.samsungmobile.com. What each part of the build number means: decode J810MUBU3CUK1.