bro i am presently using 4.2 rom and kernel and found many bugs in 4.2 rom i tried 4 to 5 rom ,so i restored to my old 4.1 suvi rom ,suddenly phone didn't on ,so i went to recovery mode and install my old version 4.1 suvi rom,but i didnt work ,so i want to downgrade to 4.1 plz help me