i rooted my galaxy s2 i1900g..n i install ICS using clockworkmod...my phone didn't boot...it juz displays the black n white samsung galaxy s2 n yellow triangle...then later on i cannot on my phone using power button...den it displays the black n white screen only wen i put the charger on....now i cannot on at all..although i insert the charger...odin download mode n clock work mod either can't open ...itz like a dead phone...what should i do????????