Many people cannot figure out how to copy contacts from a phone to a SIM card, because the menu has the function of copying contacts from a SIM card to a phone, but on the contrary, no.
For example, I will use the phone Nokia C6-01.
And so, in order to copy contacts from the phone to the SIM card, you need to open the “Contacts”, then:
1) Click “Options” and select “Mark multiple items”.
2) Press “Options” again and select “Copy”.
3) select “SIM Memory”.
Done.