Default help--lenovo s920 chinese interface????

not sure if im posting in the right area so apologies if not.
I bought a lenovo s920 and has a chinese google play and when i downloaded it ,it doesnt support it
I believe i need to root it and need a rom to do so.

again apologies if this is a repetitive question.Im just lost as to how.i have had experience flashing Xbox 360 consoles but never a phone.

any help would be great
thank you

connor maguire

android 4.2.1
baseband version s920.v17
build number s920_s141_130614

not sure if this is needed but looking through forums i believe there was something about having a ROW version??