I have an unrooted Samsung Galaxy S3 running the latest android updates (I can get details if needed). With the previous update I was able to say “allow” a call/sms from an unknown number but now when I click allow, I get no such call or sms and I have no record of it on my phone for me to call back.
the “ask-me-if-a-SMS-from-an-unknown-nuber-arrives”-feature isn’t compatible with Android 4.2 and some devices with lower Android versions.
so - I’m sorry. it won’t work anymore and will be deleted from these devices in the next update.