Does a Nextel sim card from an i930 work with a Blackberry 7100?
Blackberry 7100 is a GSM phone:Source:Gsmarena.com So you cannot use CDMA network sim card like Nextel.You can use only only GSM network sim card.If the Blackberry 7100 is an unlocked phone,you can use any GSM network sim card in it.If it is a locked phone,you cannot use other network sim card in it.Visit the site Unbblock.com get unlock code at low cost for this phone and unlock it easily.Then use any GSM sim card in it.