Samsung has released the latest UBUFND2 Android 4.4.2 KitKat for Samsung Galaxy S4 i9500 in the Argentinian region. If you want to install UBUFND2 Android 4.4.2 on Galaxy S4 i9500, you can do it via OTA or follow this guide to manually update. This build has been released reportedly to only limited users; however, you can install it on any international SGS4 i9500. 
UBUFND2 Android 4.4.2 details:
Model: GT-I9500
Model name: GALAXY S4
Country: Argentina (Personal)
Version: Android 4.4.2
Changelist: 1247523
Build date: Fri, 04 Apr 2014 12:44:05 +0000
Product Code: PSN
PDA: I9500UBUFND2
CSC: I9500PSNFND2
MODEM: I9500UBUFNA2
Prerequisites to install UBUFND2 Android 4.4.2 on Galaxy S4 i9500 official:
- Download and install USB drivers for SGS4 in your computer.
- Make sure to take backup of any important files on your smartphone.
- Enable USB debugging option by pressing Menu > Settings > Applications. Navigate and tap on Developer Options to ensure that USB Debugging is enabled.
- Ensure that your Samsung Galaxy S4 i9500 carries more than 70% of charge.
How to install UBUFND2 Android 4.4.2 on Galaxy S4 i9500 official firmware:
Required files: download the UBUFND2 4.2.2 JB firmware file from here. Extract and you will get a tar.md5 file. Also download the Odin3 v3.09 for installation from here.
- Install Odin on your computer.
- Switch your Samsung Galaxy S4 off and boot it in Download mode: press and hold Volume Down, Power and Home buttons together. When connected successfully, you will get a message in Odin saying Added!!. (In case you don’t get it, try another USB port. If that doesn't help either, then re-install USB drivers).
- In Odin make sure that the Auto Reboot and F. Reset Time check boxes are the only options checked and nothing else is.
- On your Odin, select files:
- Click on AP / PDA and select file with CODE in its name.
- Click on CP/Phone and select file with MODEM in its name - ignore if you didn't get any such file.
- Click on CSC and select file with CSC in its name - ignore if you didn't get any such file.
- Click on PIT and select the .pit file - ignore if you didn't get any such file.
- When official update installation is successfully completed, on Odin ID:COM will turn green and Odin will show you a PASS message.
- Samsung Galaxy S4 I9500 will restart automatically and you can then disconnect your device from computer.
Note: In case your device gets stuck at boot screen after installation of official firmware, perform data wiping tasks: turn off S4 and reboot it into recovery mode. In recovery, select the wipe data/factory reset. Go back and reboot your smartphone.
About the author: Rafia joined Wccftech in 2012 as a tech reporter. She is currently working on stories focusing on people and technologies that are turning Microsoft into a “company to watch” again. She is also responsible for collaborating with tech makers and e-commerce platforms to bring annoying but tempting deals to our readers.
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