To Update Samsung Galaxy Grand 2 Duos SM-G7102 Software you need to install a newer firmware version on it. You can update your Samsung Galaxy Grand 2 Duos SM-G7102 without a computer by going to Settings > About Device > Software Update. Also, You can update this Samsung device manually, But you need to use a computer.
In this Guide, You will learn how to update Samsung Galaxy Grand 2 Duos SM-G7102 manually by using the Odin3 flasher and Samsung Stock Firmware files.
The explained steps in this Guide will help you to Factory Reset Samsung Galaxy Grand 2 with model numbers:
Samsung SM-G710K for South Korea. Samsung SM-G710L for South Korea. Samsung SM-G710S for South Korea. Samsung SM-G7102 with Dual SIM Cards. Samsung SM-G7102T with Dual SIM Cards. Samsung SM-G7105. Samsung SM-G7105L. Samsung SM-G7106 for China. Samsung SM-G7108 for China. Samsung SM-G7108V for China. Samsung SM-G7109 for China.