Storing contacts on the Sim card. It is extremely important to store all contacts on your mobile phone to the Sim card, reasoning been, mobiles phones can malfunction: this could lead to all information been lost or erased from the phone memory. Follow these steps. 1: open up your contacts 2: press key1, this is also the option key. The prompt will say, "Open" 3: arrow down until you hear "mark/unmark submenu" `4: press key1 the prompt will say "mark one of two", arrow down once until you hear all and press key1. Note: now all your contacts have been highlighted. " 5: press key1 and arrow down to copy submenu and press key1 again. The prompt will say "Sim directory one of 2", this can vary from phone to phone. 6: press key1 on Sim directory, the prompt will say "copy all numbers", press key1 for yes and now you are finished. Finally, from now on, After you have created contacts on your mobile phone make sure to copy them also in to the Sim directory. Bert