Samsung has started rolling out the latest Android 4.4.2 stock firmware with build number I9500UBUFNB3 for the international variant of Galaxy S4 (GT-I9500). The new firmware is now available for download as an Over-The-Air (OTA) update as well as through Samsung KIES in Trinidad and Tobago.

I9500UBUFNB3 Android 4.4.2 Stock Firmware Available for Galaxy S4 [How to Install]

However, those who missed the OTA update and/or residing outside Trinidad and Tobago or cannot wait for the official KitKat release in their country can install the same manually, using the step-by-step guide given below.

Android 4.4.2 I9500UBUFNB3 Stock Firmware Details

Model: GT-I9500

Model name: Galaxy S 4

Country: Trinidad and Tobago

Version: Android 4.4.2

Changelist: 742022

Build date: Tue, 18 Feb 2014 01:12:32 +0000

Product Code: TTT




NOTE: As this is an unbranded firmware, it can be installed on any unlocked international variant of Galaxy S4 (GT-I9500), regardless of the country or region.

Interested users who wish to enjoy the latest KitKat features can go ahead and install the new update with build number I9500UBUFNB3 on their Galaxy S4.

IBTimes UK reminds its readers that it will not be held liable for any damage to device, during or after the firmware installation. Users are advised to proceed at their own risk.


1. Install necessary USB Drivers for Galaxy S4 (GT-I9500) on the computer.

2. USB Debugging Mode should be enabled on the phone by navigating to Settings >> Developer Options.

3. Back up your important data to avoid potential data loss during firmware installation.

4. Ensure the phone is factory unlocked (not locked to any specific carrier).

5. Verify Galaxy S4 has at least 80 percent battery charge.

6. The Android 4.4.2 I9500UBUFNB3 firmware is compatible with Galaxy S4 (GT-I9500) model only. Do not attempt installing it on incorrect variants as it may brick the device. Verify the model number of the Galaxy S4 by navigating to Settings >> About Phone.

Downloads Required

Steps to Update Galaxy S4 with Android 4.4.2 I9500UBUFNB3 KitKat Stock Firmware

I9500UBUFNB3 Android 4.4.2 Stock Firmware Available for Galaxy S4 [How to Install]

Step 1: Extract Android 4.4.2 I9500XXUBUFNB3 firmware zip file via WinRAR, 7-Zip or WinZip to obtain a .tar.md5 file and some other optional files.
Step 2: Next Odin zip file should be extracted to get Odin3 v3.09.exe along with few other files.
Step 3: Turn off the Galaxy S4 and boot the device into Download Mode. To do so, press and hold Volume Down, Home and Powerbuttons together until a construction Android robot icon with a warning triangle appears on screen. Then keep tapping Volume Up button to progress into Download Mode.
Step 5: Launch Odin on computer as an Administrator.
Step 6: Now connect Galaxy S4 to computer with USB cable in Download Mode. When Odin detects the device and a pop-up message reading "Added!" appears on screen, the ID: COM box will turn light blue with the COM port number.
Note: If the Added message fails to appear, then try re-installing USB drivers or changing the port on computer.

Step 7:In Odin, click on AP button and select the firmware file with .tar.md5 extension (firmware filename: I9500XXDLJ5_I9500ODDDLI7_INU.tar.md5)

Step 8: Now choose Auto Reboot and F. Reset Time checkboxes in Odin. Leave the Re-Partition option unchecked.
Step 9: After ensuring that Step 7 and Step 8 are done correctly, hit the Startbutton in Odin to begin installing the firmware.
Step 10: After the firmware is installed, a PASS message with green background appears in the left-most box at the top of Odin. Galaxy S4 will then reboot to the Home screen. It is now safe to disconnect the USB cable and remove the phone from computer.

Galaxy S4 is now running I9500UBUFNB3 Android 4.4.2 KitKat official firmware. Head over to Settings >> About Phone to verify the firmware installed on the device.

[Source: SamMobile]