Update has already appeared with the number XXUANK1, so if you have and Galaxy Trend Lite. you can finally get the firmware version of Android 4.1.2. You will notice how much better it will work as a smartphone and will increase the time of its battery life. Update, you can install both the OTA, or via Samsung Kies on your computer. If you have time to upgrade, you can write, what else has changed in the phone.