IF U ARE USING THE SAME CARRIER AS BEFORE (ATT FOR EXAMPLE) IT WONT NEED UNLOCKED. IF U WERE GIVEN A NEW SIM CARD FROM UR CARRIER WHEN THE NEW PHONE WAS BOUGHT, THEN YOU WILL HAVE TO USE THE SIM CARD. THE CARRIER ATTACHES THE SIM CARD NUMBER TO UR ACCOUNT. YOUR OLD ONE CAN BE USED ONLY TO ACCESS YOUR CONTACTS, BUT NOT TO MAKE CALLS.YOU CAN HOWEVER PUT THE OLD SIM CARD IN UR NEW PHONE FOR THE SOLE PURPOSE OF TRANSFERRING UR CONTACTS, THEN REPLACE YOUR NEW SIM CARD INTO UR NEW PHONE
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I was sent a Song Ericsson w580i T-mobile from my uncle from Uk and is not accepting my sim card is complaining that I should insert correct sim card, I would really appreciate if i can get a software to enable it work with my sim card.
When you place a new or a existing SIM card from another phone provider into your mobile phone and it asks for a Security code then :- This phone is locked to the original mobile phone provider. You need to contact this mobile provider to ask for the unlock code (security code) for this phone. You need to provide proof of ownership etc and the phone's unique IMEI number which is located inside the phone under the battery. They use this number to generate the unlock code for your phone. They should provide you with instructions on how to enter this code into the phone. Once you unlock the phone, then you can insert a new SIM card in this phone or sign up with another phone provider using this phone.
You could ring the phone provider and ask for the unlock security code because you are going overseas and wish to use your phone with a prepaid SIM card from another country. This maybe a free service. The other way to get your phone unlock is to use a phone unlocking company on the Internet, they usually charge a couple of Dollars for their services.Use Google and search for "Security unlocking code” companies in your area.