Hello i was using a custom rom on my tecno M3, and now i wanna sell the fone so i decided to flash a stock rom i downloaded from hovateck using sp flash tool,everything went smoothly buh wen i turn on the fone ,it displayed a distorted screen buh i can hear the boot sound,infact wen it finished booting i was able to receive a call,so it looks everything is working fine except the display,i flashed it again and still the same display issue,i need yur help guys