Open your Contacts from your Samsung.
Press the Menu button and then select the More option from the list of menu items.
Select the Import/Export option to proceed.
After clicking on Import/Export, you can Select your choice of Export to either SIM card or to SD card.
Sync contacts with Google Gmail. And you can log in your Gmail account on LG to transfer contacts from Samsung to LG.
I just got a new Samsung A850 to replace an LG VX3100. I had to reenter my numbers to fill my contact list. Is there a way to make a back up of all numbers?

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