If you are bored with the old firmware of your Galaxy Grand 2 Duos SM-G7102, then Androidbiits brings a great news for you. G7102ZTUANG2 Android 4.3 ZTUANG2 has been released for Samsung Galaxy Grand 2 SM-G7102. The big question is how to install G7102ZTUANG2? Dear friend, I am here to help you in updating your Grand 2 Duos SM-G7102 to Android 4.3 ZTUANG2. Recently, I have posted the tutorial for updating Samsung Galaxy S5 mini SM-G800H to Android 4.4.2 G800HXXU1ANH4. Now I am going to write the tutorial to update Samsung Galaxy Grand 2 Duos SM-G7102 to Android 4.3 ZTUANG2. If you are using SM-G7102, then you can install G7102ZTUANG2. Continue reading →