45 minutes - 1 hour
Had the dock connector fried by a power outage.
Stressful but was able to successfully fix the phone. Was very proud of myself.
Make sure you have some way to organize what you pull out and which screws go to where. Also make sure you won't lose the screws either.
Flathead 3/32" or 2.5 mm Screwdriver
Phillips #000 Screwdriver