The Samsung Galaxy S4 Mini is the younger sibling of the Galaxy S4. It runs on a 1.7GHz dual core Snapdragon processor, with 1.5GB RAM and 8GB internal storage (16GB in some regions). The 4.3″ Super AMOLED display has a resolution of 540×960. The S4 Mini runs on Samsung Touchwiz and comes with the standard suite of Samsung apps.
The Galaxy S4 Mini 3G with model number GT-I9190 has received the OTA Android 4.4.2 update which will upgrade the firmware to I9190XXUCNJ3 build. Not all regions have received the OTA. Instead of waiting for the OTA, you can install it manually. Follow the guide below.