Samsung Galaxy Wide8

Firmware is specific to the model code. Find yours on the box or in Settings › About phone, then pick it below.

ModelSold inFirmwareLatest build

SM-M166SSold inSouth KoreaFirmware1 CSC · 11 buildsLatest buildM166SKSS8CZH9 · Aug 19, 2026→

One UI and Android versions of the Galaxy Wide8, with the first release of each.

1. Sep 2025

   Android 16

   First firmware build: M166SKSU3BYI8 (SM-M166S)

2. Apr 2025

   Android 15

   First firmware build: M166SKSU1AYD6 (SM-M166S)