J810GDDS5CUD1 – Galaxy J8 firmware

Build J810GDDS5CUD1 is a security update for the Galaxy J8 (SM-J810G) on Android 10. It first appeared on Samsung's servers on May 23, 2021 (method) and has reached 4 regions so far. It raises the bootloader bit from 4 to 5: once installed, the device no longer accepts firmware with bit 4 or lower, so a downgrade to J810GDDU4CUC1 is blocked. Samsung still serves this file.

Model
SM-J810G
Android
Android 10
Type
Security
Bootloader bit
5
First released
May 23, 2021
Regions
4

Rollout timeline by region

The date each region code (CSC) first received J810GDDS5CUD1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
INSIndiaMay 23, 2021day 0J810GDDS5CUD1/J810GODM5CUD1/J810GDDS5CUD2
BKDBangladeshMay 24, 2021+1 dayJ810GDDS5CUD1/J810GODM5CUD1/J810GDDS5CUD2
BNGBelgiumMay 24, 2021+1 dayJ810GDDS5CUD1/J810GODM5CUD1/J810GDDS5CUD2
SLKSri LankaMay 24, 2021+1 dayJ810GDDS5CUD1/J810GODM5CUD1/J810GDDS5CUD2

Download and release notes

samloader download -m SM-J810G -r INS -v J810GDDS5CUD1/J810GODM5CUD1/J810GDDS5CUD2

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 J810GDDS5CUD1.