i9300 clone mtk 6577
 

ok people

i got an android i9300 clone thats on android 4.1.1 and inside the battery cover its says mtk 6577

would updating this or downgrading it fix a poor reception i have at home with O2/GIFFGAFF

i would like to put downgrade it to 4.03 which i have on my android note and works perfect just cant find any roms for this phone

baseband version MAUI.11AMD.W12.22.SP.V5
Kernel version 3.0.13

can any one help with info or files thanks

respects