J810GDDU6CUI1 – Galaxy J8 firmware

Build J810GDDU6CUI1 is a feature update for the Galaxy J8 (SM-J810G) on Android 10. It first appeared on Samsung's servers on Dec 8, 2021 (method) and has reached 4 regions so far. It raises the bootloader bit from 5 to 6: once installed, the device no longer accepts firmware with bit 5 or lower, so a downgrade to J810GDDU5CUF2 is blocked. Samsung still serves this file.

Model
SM-J810G
Android
Android 10
Type
Feature
Bootloader bit
6
First released
Dec 8, 2021
Regions
4

Rollout timeline by region

The date each region code (CSC) first received J810GDDU6CUI1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
BKDBangladeshDec 8, 2021day 0J810GDDU6CUI1/J810GODM6CUI1/J810GDDU6CUI1
BNGBelgiumDec 8, 2021day 0J810GDDU6CUI1/J810GODM6CUI1/J810GDDU6CUI1
INSIndiaDec 8, 2021day 0J810GDDU6CUI1/J810GODM6CUI1/J810GDDU6CUI1
SLKSri LankaDec 8, 2021day 0J810GDDU6CUI1/J810GODM6CUI1/J810GDDU6CUI1

Download and release notes

samloader download -m SM-J810G -r INS -v J810GDDU6CUI1/J810GODM6CUI1/J810GDDU6CUI1

Samsung's release notes and security patch level for this update: SM-J810G / INS on doc.samsungmobile.com. What each part of the build number means: decode J810GDDU6CUI1.