Do you want to break sim lock in your modem to use other network sim card or you need to break sim security lock?
If you want unlock Modem from Sim lock use unlock code.Visit the site
Mobileunlocksolutions.com get unlock code and unlock it.Then you can use any GSM network sim card in your modem.If you want to unlock from sim security lock try default codes.You can get from user manual or search online.
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