genuine Samsung (can be noticed on 30Q and 25R and maybe others) should have faint markings visible underneath the wrapper (assuming without tearing up the wrapper)
they form part of the date code as mentioned here:
genuine Samsung (can be noticed on 30Q and 25R and maybe others) should have faint markings visible underneath the wrapper (assuming without tearing up the wrapper)
they form part of the date code as mentioned here: