Hello! I recently got an iPhone 4s with ios 6.1.3. I have jailbroken it. But, due to the greater variety of tweaks and apps on ios 7, I'm wondering whether I can update to ios 7 in any way. I have looked at Odysseus and iFaith which seem to be able to do just that (they do, don't they?). But, they seem awfully complicated. (I don't have the SHSH blobs for ios 7.) So can Odysseus and/or iFaith and/or any other tool get me to ios 7 on my 4s? Thanks a lot!