The Android 4.4.2 KitKat software update with build number I9505XXUFNB8 is now rolling out to the LTE variant of Galaxy S4 bearing model number GT-I9505. With a build date of February 13, the Android KitKat firmware is now live for the Galaxy S4 users in Germany.

Samsung Galaxy S4
Guide to install I9505XXUFNB8 Android 4.4.2 KitKat on Galaxy S4 LTE GT-I9505. Samsung

Firmware details

Model: GT-I9505

Model name: Galaxy S 4 LTE

Country: Germany

Version: Android 4.4.2 KitKat

Changelist: 481100

Build date: February 13, 2014

Product Code: DBT




Click here to know more about I9505XXUFNB8 Android 4.4.2 KitKat new features and improvements.

To update Galaxy S4 with I9505XXUFNB8 Android 4.4.2, connect the phone to the computer and use Samsung Kies or, the OTA service. To download and install the firmware through OTA service head over to Settings>> More>> About device>> Software update>> Update.

As it is a phased roll out, the update might not be available for all users currently. Interested users, who wish to install the new KitKat firmware manually on their Galaxy S4, may follow our step-by-step guide.

Note that I9505XXUFNB8 Android 4.4.2 build is an unbranded version of firmware and can be installed on any unlocked GT-I9505 unit irrespective of country and region.

IBTimes UK reminds its readers that it will not be held responsible for any damage to the device. Before installing the stock firmware, users are advised to verify their devices meet following requirements.


1) Install USB Drivers for Samsung Galaxy S4 to connect the Android device with the computer.

2) Enable USB Debugging Mode on phone to connect it with the computer and use Android SDK with it. [Navigate to Settings>> About phone. Tap on Build Number several times until a message appears saying 'You are now a Developer.' Now go to Settings>> Developer Options to enable USB Debugging Mode.]

3) As the tutorial is likely to wipe out all data of the phone, create a backup. If the device is having any custom recoveries such as CWM/TWRP then backup data using the same.

4) If the Android phone powers off due to lack of battery while the installation process, it could damage the device. Therefore, the Galaxy S4 should have charge above 80% battery charge.

5) The device should be factory unlocked and not locked to a particular carrier.

6) The phone will lose custom ROM with the installation of official firmware. Also, the custom recovery will be replaced by the stock version.

7) The device will no longer belong to a rooted version with the installation of official firmware.

8) I9505XXUFNB8 Android 4.4.2 KitKat official firmware works only with LTE Samsung Galaxy S4 GT-I9505. As flashing this on any other variant might brick the device, verify the model number of Galaxy S4 by navigating to Settings>> About device>> Model number.

Download files

I9505XXUFNB8 Android 4.4.2 KitKat [Alternative links]

Odin v3.07

How to install I9505XXUFNB8 Android 4.4.2 KitKat on Galaxy S4 LTE GT-I9505

Step-1: Extract the downloaded firmware zip using winrar/7zip/winzip or any other extracting tool to get a .tar.md5 file with few other files, which are optional

Step-2: Extract the Odin zip to get Odin3 v.3.07.exe with few other files

Step-3: Switch off Galaxy S4

Step-4: Place the phone into Download Mode by pressing and holding Volume Down, Home and Power buttons together until a construction Android robot icon with a warning triangle appears on the phone screen. Now press the Volume Up button to enter Download Mode

Step-5: Run Odin3 v3.07.exe as Administrator [To do so, right click on Odin.exe file then click on Run as administrator from context menu.]

Step-6: Connect the Galaxy S4 to computer using USB cable while it is in Download mode. Wait for some time until Odin detects the device. When the phone is connected successfully an Added message will appear under Odin. Also, the ID: COM box in Odin will turn light blue with COM port number, indicating successful connection

Note: If the Added message does not appear, then try to re-install USB derivers or change the USB port on the computer.

Step-7: Select these files extracted from I9505XXUFNB8 folder

a) Click the PDA button and select the .tar.md5 file

b) Click the Phone button and select file with MODEM in its name

c) Click the CSC button and select file with CSC in its name

d) Click the PIT button and select the .pit file

Note: Ignore the last three steps (step-b, c and d) if such files do not exist.

Step-8: In Odin enable Auto Reboot and F.Reset Time checkboxes. Click the Re-Partition checkbox if a .pit file has been chosen in the previous step

Step-9: Verify everything and click the Start button in Odin. The installation process should begin now and take about few minutes to complete

Step-10: When the installation process is completed, the phone will restart automatically and soon a PASS message with green background will appear in the extreme left box at the very top of Odin. Disconnect the phone from the computer

I9505XXUFNB8 Android 4.4.2 KitKat firmware should now be installed and running on the Galaxy S4 LTE. Navigate to Settings>> About device to verify the new firmware version running on the device.

How to Fix Bootloop Issue

If the Galaxy S4 gets stuck at booting animation (after step-10), go to recovery mode by pressing and holding Volume Up, Home and Power and buttons together. Now perform Wipe data/Factory reset then Wipe Cache Partition.

Once the action is completed, reboot the phone by selecting reboot system now. In recovery mode, use Volume keys to scroll between options and Power button to select the desired option. Note that performing wiping task will erase the phone's internal memory data.

[Source: Honai of Android]