Hello po, ano po version ng miui nyo?
Dapat po naka-on ung developer setting ninyo.. kung di nyo pa na-on...
Punta ka sa settings, then "about phone", at tap mo ung miui version about 7 times. Once developer naung status....
Punta ka po sa settings- additional settings- developer options- tapos i-off nyo po ung toggle na "turn on miui optimization"... Mag rerestart po ung phone nyo...
After that, you can import .prx settings like any other phone. Sana po naka tulong. Good luck