30 minutos - 2 horas
Like a lot of other cameras on the iPhone 4s, mine died. After a few months of trying to solve it via software, I decided to just replace the camera.
Repair went well. There are a number of guides out there (YouTube, et al) but the iFixit instructions were just fine. Repair would have gone flawlessly, but I thought I was smarter than iFixit (I'm not) and took one of the screwdrivers and the plastic shims out of the kit to save a few bucks. BAD IDEA! Anyway, camera works perfectly now.
Order the whole kit. God, what a pain in the ass trying to do the fix without the right tools (I thought I had screwdrivers that would work and could use my fingers 'sted shims....argh.)
Just order the kit & save going to Radio Shack to find out they don't have the right tools...and that your screwdrivers are too big for this... (nothing special to see & browser didn't load pix...)