why on my blackberry flip it says invalid sim card?

[DavidBrautman]

i just got one of my friends blackberry flip. its a diffrent service. when i put in my sim card on the very top it said invalid sim card.

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[DianDaniel]

It's because it's locked to the carrier...

Try to unlock your blackberry...

 

[jocoolguy]

If your Blackberry Phones displays Invalid Sim message,it is locked to network....You need to unlock it...After unlock it you can use with other network...You can get the Unlock code for Blackberry Pear flip phone from Superunlockcodes.com
and unlock it from network lock easily.