My Oppo phone can't change the apps language

How to remove  Chinese language on oppo phone

Hello,
I am needing some advice I have been trying to connect my playstation2 to my laptop via the networking
plugs the 8 wire ones I gather is ethernet but im not sure, now I want the ps2 to connect to my mobile broadband.
so when I open network connections after connecting ps2 it shows four connections two in dial up one being vodafone mobile which is what I use for the net and is 3g and a disconnected 3g one by the same company, now in the LAN or high speed internet section there are two other connects, one is a wireless network connection obviously WiFi but the other is the playstation I guess and it is named Local area connection under that it says
u...

Hi, My Oppo phone can't change the apps language from Chinese to English. Please help me.