Honestly guys yung " Mobile Radio power on/off ay switch lang din po yan ng mobile data nyo.. wag basta basta kalikutin yung engineering mode kung di nyo alam. Tweak at your own risk nlng mga guys. May safe method din naman. Btw TS bka makulong to, hnd kc lahat ng phone model ay supported ang engineering mode. Mostly MTK devices lang po ang gumagana. Eto gamitin nyo.