Do you want to use your Blackberry Curve with AT&T, T-Mobile or another GSM sim card? If so, we can unlock your Blackberry to work with any GSM sim card/carrier so you are free to use your Blackberry with another carrier or use it overseas with another sim card while traveling. Once unlocked just insert your new sim card and you'll be ready to make and receive phone calls and text messages. Most unlocks take 3 to 24 hours to complete. If you want to use your blackberry for internet or email see our Blackberry Internet/Email Setup Service.