Firmware/ Flash FIle Download Link Available For Samsung GT-I9100 (s2).
why you flash your deive ?
- if your phone only show Samsung logo on screen any option is not working you need flash your device.
- phone is auto application download and install. any option is not working properly
- phone is freezing problem auto restart.
- Phone is water damage after clean your device still device is no power etc.
or any others flashing related problem at first make sure battery charge is 60% up. if your device battery is low don't try to flash your device it's to risk for your phone.
make sure phone usb connection is clean.
connect your device with pc use usb cable. try use upgrade odin flash tool.