nowadays, the mobile setting is no more as the past days
sorry, i cannot install the apk on my device, because nowadays, the mobile setting is no more as the past days, Settings > Applications > Unknown sources:
the above settings are no more appeared on our device., don't you know that ? ask more people
i can only open the apk on my e-mail.
but now, i discover i cannot.
so what can i do ? please help