Phone restarts every single time I get an SMS

[zukernik]

iPhone 4s 64GB. Doesn't restart when I get messaged through Whatsapp. My phone is jailbroken but I do not have any kind of cracked or illegal apps so not sure what is causing this.

 

[Superman80]

I had this problem when i installed My3G, which i deleted and then used 3g unrestricted, but as you have nothing installed it must be a problem with the jailbreak, maybe restore and re jailbreak might help