Samsung Galaxy Buddy4

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-A166LSold inSouth KoreaFirmware1 CSC · 11 buildsLatest buildA166LKSS8CZH1 · Aug 19, 2026→

One UI and Android versions of the Galaxy Buddy4, with the first release of each.

1. Sep 2025

   Android 16

   First firmware build: A166LKSU3BYI8 (SM-A166L)

2. Apr 2025

   Android 15

   First firmware build: A166LKSU1AYD3 (SM-A166L)