Just completed ipad 3 battery replacement. I might have killed the cellular connectivity because I got a missing sim card warning, which is no big deal because I never use it. I would put this as one of the most difficult fix it jobs I have done. During screen removal, I killed the super thin, black plastic bezel, and put a tiny micro crack in the front glass. After inflicting this damage, I decided, in for a penny in for a pound, and purchased both from iFixit and got quick delivery. Now I have an iPad with a decent battery and will try to get a couple more years out of it. If I had this job to do over and someone was willing to do it for $100, I would pay, but it always fun to fix something yourself.