If by "update" you mean change the SIM card number that is currently active with your cellphone provider, then either
a) Call the international number for your provider and ask them to switch it. ; or
b) Log in to the online Self Service your provider may have and switch it there.
An Apple iPhone 3GS can be purcased unlocked without a SIM card and used with a local carrier's SIM card. Once purchased it is as simple as inserting a SIM card from the carrier of your choice.
When you have a phone unlocked it simply means that it will accept any sim card (any compatible sim card). So once its unlocked you dont have to worry about re-locking it. You can put your 3 sim card back in if you want, or an orange one or voda or keep the o2 one in. Its your choice.
this is happening to me too! let me know any solutions
The possibility of putting a sim card into a mac computer is going to depend on what kind of computer and what kind of sim card. Some models might work while others may not.
You call your carrier and activate your sim card.
The plural form of SIM card is SIM cards.
sim card
sim card
Of the advantages of having an international SIM card is that it will allow you to stay in touch with friends and family and business associates reguardless of where you go. And you will be able stay in touch with the same amount of money as you pay for local rates on your phone when you travel abroad.
A SIM card adaptor will allow you to use a micro SIM in a standard SIM slot.
yes
NO