Why didn't Samsung s3370 display its name on the screen when it received the text message?

Please make sure this number and name are in the address book. If you open the message inbox and see that there is no name on this message, it proves that there is no such number in your address book. For example, if you save the address book in the SIM card, set it on your mobile phone >; Application settings > contacts > if the viewing contact is set to mobile phone, the mobile phone will only read the contacts in the memory of the mobile phone, not the contacts in the SIM card.