G955U1UES8DTJ1 – Galaxy S8+ firmware

Build G955U1UES8DTJ1 is a security update for the Galaxy S8+ (SM-G955U1) on Android 9. It first appeared on Samsung's servers on Oct 29, 2020 (method) and has reached 14 regions so far. It keeps bootloader bit 8, so downgrading to the previous build G955U1UES8DTI3 is still possible. Samsung still serves this file.

Model
SM-G955U1
Android
Android 9
Type
Security
Bootloader bit
8
First released
Oct 29, 2020
Regions
14

Rollout timeline by region

The date each region code (CSC) first received G955U1UES8DTJ1, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
ACGUSA (C Spire)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
AIOUSA (Cricket)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
ATTUSA (AT&T)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
BSTUSA (Boost)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
LRAUSA (Bluegrass)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
SPRUSA (Sprint)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
USCUSA (US Cellular)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
VMUUSA (Virgin)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
VZWUSA (Verizon)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
XAAUSA (unlocked)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
XASUSA (Sprint)Oct 29, 2020day 0G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
TMKUSA (MetroPCS)Nov 7, 2020+9 daysG955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
TMBUSA (T-Mobile)Nov 7, 2020+9 daysG955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1
TFNUSA (TracFone)Nov 7, 2020+9 daysG955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1

Download and release notes

samloader download -m SM-G955U1 -r XAA -v G955U1UES8DTJ1/G955U1OYM8DTJ1/G955U1UES8DTJ1

Samsung's release notes and security patch level for this update: SM-G955U1 / XAA on doc.samsungmobile.com. What each part of the build number means: decode G955U1UES8DTJ1.