yun na yun sir..ano model ba ng phone..kung mtk chipset nmn phone mo eh hindi na humihingi ng code yun. punta ka lng sa simme lock then unlock mo lahat ng andun..after ma unlock ang network usually nawawala ang IMEI..
try mo e root.kpag rooted na pasukin mo engineering mode dial *#*#3646633#*#* o kung ayaw download ka mtk engineering sa play store , then kpag nakapasuk kna do this Under "Telephony" which is currently the home tab, scroll down and
select •SIMME LOCK•
~ Select "Network Personification"
~ Select...