Samsung Galaxy A40

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-A405FNSold in30 countriesFirmware80 CSCs · 2,096 buildsLatest buildA405FNXXU4CWC3 · Mar 24, 2023→

One UI and Android versions of the Galaxy A40, with the first release of each.

1. Mar 2021

   One UI 3.1 · Android 11

   Official release: A405FNXXU3CUC2 (SM-A405FN)

2. Mar 2021

   One UI 3 · Android 11

   Official release: A405FNXXU3CUC2 (SM-A405FN)

3. Feb 2020

   Android 10

   First firmware build: A405FNXXU3BTB8 (SM-A405FN)

4. Mar 2019

   Android 9

   First firmware build: A405FNXXU1ASC3 (SM-A405FN)

As published by Samsung for the SM-A405FN; other model codes can differ (chipset, network bands).