Tested Devices :
1.Samsung Galaxy Y
2.Samsung Galaxy Y Duos
Procedure :
1.copy both files in root of memory card
2.Insert that memory card in your android device
3.Now switch off your device
4.Now press volume up + power + home button together to start recovery mode
5.In this mode touch will not work so navigate using volume up and down keys and select using home button
6.Now select ‘update zip from sd card’
7.Now select 'cwm.zip'
8.Yellow coloured menu will appear
9.Select...