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 May 28, 18 Mexico (UNE) J400MUBU1ARE3
Galaxy J4 SM-J400M Pie(Android 9) November 13, 19 Mexico (UNE) J400MUBS4BSI3
Galaxy J4 SM-J400M Pie(Android 9) July 22, 19 Mexico (UNE) J400MUBS4BSG1
Galaxy J4 SM-J400M Pie(Android 9) October 04, 19 Mexico (UNE) J400MUBU4BSH1
Galaxy J4 SM-J400M Pie(Android 9) May 21, 19 Mexico (UNE) J400MUBU3BSDD
Galaxy J4 SM-J400M Pie(Android 9) March 13, 20 Mexico (UNE) J400MUBU5BSL2
Galaxy J4 SM-J400M Pie(Android 9) April 01, 20 Mexico (UNE) J400MUBS7BTB3
Galaxy J4 SM-J400M Q(Android 10) September 03, 20 Mexico (UNE) 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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