Those who currently own Samsung Galaxy S2 can now install official Android 4.1.2 Jelly Bean update on their smartphone.

The official Android 4.1.2 Jelly Bean update is now released for Samsung Galaxy S2, specifically the variant with model number GT-I9100. The VJMS3 firmware is currently being rolled out via Over-the-Air or OTA for users of Samsung Galaxy S2 in various countries and regions like Brazil.

Because the official Android 4.1.2 Jelly Bean VJMS3 update is an unbranded firmware, it can be installed on the international version of Samsung Galaxy S2 bearing the model number GT-I9100. It is always advised to update Android devices with the latest official firmware as it offers the newest features and bug-fixes over former OS releases.

For those who were not able to access the official Android 4.1.2 Jelly Bean update via OTA or who do not want to wait for the official release in their region, users of Samsung Galaxy S2 can opt to install the firmware through the manual installation process.

But before installing Android 4.1.2 Jelly Bean update, there are important reminders to keep in mind. First, recheck the model number of the Samsung Galaxy S2 because VJMS3 firmware is only meant for the GT-I9100 variant. Installing the official Android 4.1.2 Jelly Bean firmware to other device may only cause permanent damage.

Second, it is necessary to back up the settings and data stored on the phone. Use custom recovery tool like ClockWorkMod and TWRP.

Third, appropriate USB drivers of the Samsung Galaxy S2 should be installed on the computer.

Fourth, enable USB Debugging mode.

The battery level of Samsung Galaxy S2 should at least be 80 percent before installing Android 4.1.2 Jelly Bean update. This is to avoid unexpected shutdown of the smartphone because of power drainage during the installation process.

For the step-by-step guide on how to install official Android 4.1.2 Jelly Bean update to Samsung Galaxy S2, visit this post from International Business Times. Download links for drivers and firmware is also provided on the list.