Question about updating used iPhone to 5.1.1
What's up everyone. I have an iPhone 4s that I bought off of a friend and it's jailbroken.
Now that the JB for 5.1.1 is about to drop I just had a question about the safest way to update. The reason I'm asking is because from the first time I had this phone it was already JB. I never had a clean backup to restore too.
Can I just download 5.1.1 and then update or do I need to do something special.
Sorry if this is a super-noob question, I just don't wanna brick anything.