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.

Easily and safely unlock your phone for any network provider.

Get Started
Name Model Version Date Region / Carrier PDA
Galaxy J4 SM-J400M Pie(Android 9) March 26, 20 Ecuador (ECO) J400MUBS7BTB3
Galaxy J4 SM-J400M Q(Android 10) August 18, 20 Ecuador (ECO) J400MUBU9CTGO
Galaxy J4 SM-J400M Pie(Android 9) August 22, 19 Ecuador (ECO) J400MUBU4BSG3
Galaxy J4 SM-J400M Pie(Android 9) September 14, 19 Ecuador (ECO) J400MUBS4BSI1
Galaxy J4 SM-J400M Pie(Android 9) January 10, 20 Ecuador (ECO) J400MUBU5BSL2
Galaxy J4 SM-J400M Pie(Android 9) February 20, 20 Ecuador (ECO) J400MUBS6BTA1
Galaxy J4 SM-J400M Pie(Android 9) December 18, 19 Ecuador (ECO) J400MUBS5BSK1
Galaxy J4 SM-J400M Pie(Android 9) June 07, 19 Ecuador (ECO) J400MUBS3BSE3
Galaxy J4 SM-J400M Pie(Android 9) October 22, 19 Ecuador (ECO) J400MUBS4BSI2
Galaxy J4 SM-J400M Pie(Android 9) May 26, 20 Ecuador (ECO) J400MUBS8BTE2
Galaxy J4 SM-J400M Pie(Android 9) July 21, 20 Ecuador (ECO) J400MUBS9BTF3
Galaxy J4 SM-J400M 8.0.0 November 29, 18 Ecuador (ECO) J400MUBU2ARJ3
Galaxy J4 SM-J400M 8.0.0 March 26, 19 Ecuador (ECO) J400MUBS2ASC2
Galaxy J4 SM-J400M 8.0.0 August 09, 18 Ecuador (ECO) J400MUBU2ARG7
Galaxy J4 SM-J400M 8.0.0 May 10, 19 Ecuador (ECO) J400MUBS3ASD4

1 - 15 of 17

Load More

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

Looks like you're using an ad blocker.

We get it: ads aren't what you're here for...

But ad revenue is our only way to manage this site. Without ad revenue we won't be able to continue to provide quality content and free firmware downloads.

Please disable your ad blocker or whitelist Updato.com in order to continue into Updato's ad-light experience.

Thanks for your support!