In this Guide, You will learn how to update Samsung Galaxy S2 GT-I9100 manually by using the Odin3 flasher and Samsung Stock Firmware files. Also, You can update this Samsung device manually, But you need to use a computer. You can update your Samsung Galaxy S2 GT-I9100 without a computer by going to Settings > About Device > Software Update. To Update Samsung Galaxy S2 GT-I9100 Software you need to install a newer firmware version on it.
