#summary How JerrySim Works. #labels Featured,Phase-Design,Phase-Implementation = JerrySim = Jerrysim uses nothing else than a buffer overflow in the SIM Application Toolkit Management. The refresh routine is flawed and so exploited by JerrySim code. = REMOVED TILL FURTHER NOTICE = NOW, "DEV TEAM" show me your courage. And release something. Open source. Free. And try to credit everyone.