mrfrench

hi sir can i unlocked my s90-a lollipop version sim1 and downgade it to kitkat?

Hi there every one .. can you pls help me about my s90-a its updated already in a lollipop version .. 5.0.2 .. i just want to downgrade it to 4.4.4 to access a root auth. and can teach how ? .. pllss .. im from the phillipines my phone was under a plan services .. i just want to open or unlock my sim1 slot to any network .. i really appreciate it if can teach how .. plls .. my lenovo specs : lenovo s90-A manufacturer china plls help me how to flash a rom of my phone thanks and advance .. newbie here