W2018ZCU3CTK2 – W2018 firmware

Build W2018ZCU3CTK2 is a feature update for the W2018 (SM-W2018) on Android 9. It first appeared on Samsung's servers on Dec 15, 2020 (method) and has reached 1 region so far. It keeps bootloader bit 3, so downgrading to the previous build W2018ZCU3CSL2 is still possible. Samsung still serves this file.

Model
SM-W2018
Android
Android 9
Type
Feature
Bootloader bit
3
First released
Dec 15, 2020
Regions
1

Rollout timeline by region

The date each region code (CSC) first received W2018ZCU3CTK2, counted from the first release.

CSCRegionReleasedRolloutVersion (PDA/CSC/MODEM)
CHCChinaDec 15, 2020day 0W2018ZCU3CTK2/W2018CHC3CTK2/W2018ZCU3CTK2

Download and release notes

samloader download -m SM-W2018 -r CHC -v W2018ZCU3CTK2/W2018CHC3CTK2/W2018ZCU3CTK2

Samsung's release notes and security patch level for this update: SM-W2018 / CHC on doc.samsungmobile.com. What each part of the build number means: decode W2018ZCU3CTK2.