š. Open your ššØš§ššššš¬ šš©š© and tap the š¦šš§š® icon. It will appear as three lines in the upper left of the screen.
(Please note: if you don't see a menu icon, tap the options icon in the top right of the screen instead.)
š. Tap ššš§šš š ššØš§ššššš¬.
š. Tap šš¦š©šØš«š šØš« šš±š©šØš«š ššØš§ššššš¬.
š. Tap šš¦š©šØš«š to move files from a SIM card or SD card to your phone, or tap šš±š©šØš«š to move contacts from your phone to a SIM card or SD card. 
š. If you selected import, choose where you are moving your contacts from. If you selected export, skip to step 9.
š. Select the ššØš§ššššš¬ you wish to import then tap ššØš§š.
š. Choose where you want the imported contacts to be saved, and tap šš¦š©šØš«š to move your contacts.
š. If you selected Export, choose where you are moving your contacts to.
š. If prompted, select which ššØš§ššššš¬ to move. If you are not prompted, all of your contacts will be moved automatically.
šš. Tap šš±š©šØš«š to move your contacts.
Stay organized and keep your contacts safe!Ā
Sources : Samsung : https://www.samsung.com/.../backing-up-and-restoring.../