Samsung galaxy S2 LTE SHV-E120L M.K 4.4.2 Style S5
Samsung Kcamdroid
2.Extract (unzip) the firmware file
3.Download Odin v3.10.6
4.Extract Odin ZIP file
5.Open Odin v.3.10.6
6.Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)
Connect phone and wait until you get a blue sign in Odin
7.Add the firmware file to AP / PDA
9.Make sure re-partition is NOT ticked
Click the start button, sit back and wait few minut
3.Download Odin v3.10.6
4.Extract Odin ZIP file
5.Open Odin v.3.10.6
6.Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)
Connect phone and wait until you get a blue sign in Odin
7.Add the firmware file to AP / PDA
9.Make sure re-partition is NOT ticked
Click the start button, sit back and wait few minut
i wish you success