Jailbroken iPhone 4 iMessage problem

When I jailbroke my iphone (it was on 6.1.2 I'm pretty for sure) I could see imessage attachments just fine. Now I can see them just in the little box before you click to view but when I click to see it, it's just a white screen with the format. I really don't know how to fix it? Any help? Oh btw I don't have any jailbroken messaging apps.

Just send it to mobile shop and unlock your iphone.jailbroke our iphone will cause many problems. That is my brother's experience.

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