I got a black berry curve not to long ago from a friend and it was a t mobile blackberry. then i put in my att sim card and it says invalid sim card how do i unlock it?
Hai,
U may visit the site mobileunlocker. In that site contains unlocking instructions for blackberry phones.
You would need to get the unlock code and instructions from a company that specializes in unlocking devices. I recommend HorizonWirelessOnline.com.
Unlock your Blackberry curve 8300 by using a Blackberry IMEI Unlock code, also called Blackberry MEP unlock code. Here is a link to get Unlock code for Blackberry within seconds.
Excellent customer and technical support, and you can pay using Paypal or credit card by phone.
Hope this helps!
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