last month i have updated my sony xperia go phone to jellybean. Now the phone lags,camera wost than before. can anyone help me? if i downgrade my phone back to Gingerbread will it solve my problem and if i did that will my warranty will be valid .
Yes you can downgrade and if you had no issues before this upgrade then your phone should revert back to the state it was before - Ref warranty then some would say yes and some no - For me if you haven't rooted or unlocked the bootloader and are flasjhiong a stock rom then you should be fine
