Samsung 心系天下 三星 W27
The latest firmware for Samsung 心系天下 三星 W27 (SM-W9027) is W9027ZCU1AZIF with Android 17, released on September 29, 2026 for 1 region (CSC). Every official firmware build for SM-W9027, newest first: one row per build with all regions (CSC) that received it.
Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/W9027ZCU1AZIF

SM-W9025

SM-W7025

SM-W2018X

SM-W2022
You can find the firmware on the model: SM-W9027 page.
Yes, all firmware files for SM-W9027 are 100% official, original, and obtained directly from Samsung servers.
To flash SM-W9027, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.
Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing SM-W9027.