Before Installation, please make sure of the following items: A) Your iOS device has been jailbroken. B) Your WiFi has been enabled. C) OSCall source has been added into your Cydia. D) SIM Card has been installed on OSCall device. How to jailbreak your iOS device? There are many websites that teaches how to jailbreak your iOS device, some examples include: http://iphone.91.com/jailbreak/ http://www.iphonehacks.com/jailbreak_iphone
