J400m Firmware

This is where you can download and install the latest firmware for the J400M. There are plenty of firmware versions for different countries. Please make sure to pick the one that fits yours. Model number and country are the two main things that you should look out for. Feel free to check out the available downloading options for J400M firmware.

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Name Model Version Date Region / Carrier PDA
Galaxy J4 SM-J400M 8.0.0 October 31, 18 Ecuador (Alegro) (ALE) J400MUBS2ARI1
Galaxy J4 SM-J400M 8.0.0 May 08, 19 Ecuador (Alegro) (ALE) J400MUBS3ASD4
Galaxy J4 SM-J400M Pie(Android 9) August 03, 19 Ecuador (Alegro) (ALE) J400MUBS4BSG1
Galaxy J4 SM-J400M Pie(Android 9) November 06, 19 Ecuador (Alegro) (ALE) J400MUBS4BSI3
Galaxy J4 SM-J400M Pie(Android 9) March 26, 20 Ecuador (Alegro) (ALE) J400MUBS7BTB3
Galaxy J4 SM-J400M Pie(Android 9) June 12, 20 Ecuador (Alegro) (ALE) J400MUBS8BTE2
Galaxy J4 SM-J400M 8.0.0 August 23, 18 Ecuador (Alegro) (ALE) J400MUBU2ARG7
Galaxy J4 SM-J400M 8.0.0 February 12, 19 Ecuador (Alegro) (ALE) J400MUBU2ARL4
Galaxy J4 SM-J400M Pie(Android 9) May 17, 19 Ecuador (Alegro) (ALE) J400MUBU3BSDD
Galaxy J4 SM-J400M Pie(Android 9) October 07, 19 Ecuador (Alegro) (ALE) J400MUBU4BSH1
Galaxy J4 SM-J400M Pie(Android 9) January 17, 20 Ecuador (Alegro) (ALE) J400MUBU5BSL2
Galaxy J4 SM-J400M Q(Android 10) September 03, 20 Ecuador (Alegro) (ALE) J400MUBU9CTGO

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What's my model number?

There are several ways to locate your model number:

Option 1
On your device, go to Settings, then "About device" and scroll down to "Model number"
Option 2
Often times you can view the model number inside the device, by removing the battery
Option 3
Using Samsung's model/serial number location tool

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