I have samsung A510F
and the problem is it won't shows secret codes or even IMEI after update...
when i dial *#0*#, *#7353# or *#06# its shows nothing just a dial number on screen.
i have flashed other contrary roms But no change. i'm so worried costumer is demanding this function eagerly coz he is a Shop keeper.
i have flashed these roms.
if someone knows any solution please please please Help me.
My Problem Solved
i have done these changes to the device
go to setting and done Soft Reset
go to in recovery and wipe data and wipe cache as well...