W2018ZCU3CSK2 – W2018 firmware
Build W2018ZCU3CSK2 is a feature update for the W2018 (SM-W2018)
on Android 9. It first appeared on Samsung's servers on Dec 3, 2019 (method) and has reached
1 region so far. It raises the bootloader bit from 2 to 3: once installed, the device no longer accepts firmware with bit 2 or lower, so a downgrade to W2018ZCU2CSI2 is blocked. Samsung still serves this file.
- Model
- SM-W2018
- Android
- Android 9
- Type
- Feature
- Bootloader bit
- 3
- First released
- Dec 3, 2019
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received W2018ZCU3CSK2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CHC | China | Dec 3, 2019 | day 0 | W2018ZCU3CSK2/W2018CHC3CSK2/W2018ZCU3CSK2 |
Download and release notes
samloader download -m SM-W2018 -r CHC -v W2018ZCU3CSK2/W2018CHC3CSK2/W2018ZCU3CSK2Samsung'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 W2018ZCU3CSK2.