So I wanted to jailbreak my iPhone and I was interested in it before but I never really took the time to. Research properly. Forgetting that I might jailbreak in the future, I updated my phone to iOS 9. I didn't really like iOS 9 and the fact that you can run a jailbreak on it.
I researched a little and found out that I can restore with an IPSW file and I was stoked. However, it seems that Apple only “signs” down to ios 8.4.1, an UN-jailbreak able version of iOS.
What does it mean if an IPSW file is not signed? And what would happen if I were to put an unsigned version of iOS on my phone?
I got the IPSW file from this website. I have tried researching pretty much everywhere but I cannot find an answer.