yes you can use any mtk phone NV file for other mtk phone
but besure that both phones chip id same
like mtk 6252 phones need another mtk 6252 phone NV file
for mtk 6253 phones need another mtk 6253 phone NV file
for mtk 6252A phones need another mtk 6252A phone NV file
no meter which Project id inside the phone no problem if project id not match with one another ,
if you face any problem in 45% are show Some msgs on Phone Then disconnect phone and check phone after that will be ready for work
