I plan to do some traveling in Europe this summer so I dragged out my trusty old S46 that has not been under AT&T contract for a number of years. I would like to buy a pre paid SIM card for it from a company like Cellular Abroad.
Any clue on how I can tell if the phone is unlocked so it will accept a non AT&T SIM card?
They way you can tell if it is unlocked is by putting a GSM sim card in it. If the carrier badge of the sim card comes up on the main screen then you are good to go. If not, then you will have to get it unlocked. Do a search on Google for "Unlock Siemens" or "Unlock S46".