The second photo is after the top cover is removed. I’m repairing a s1600. The lens is stuck. But this guide and inside looks almost 100% the same as my s1600. Only thing is: i can’t remove the top cover. Removed all the same screws but the only difference is the lcd has no screws. Anyway the only screws I haven’t removed are the once inside the battery case (the 2 extra in the flash, not done here are also removed) Anyway the topcover looks stuck. And i’m going to try a plastic prying tool. The battery screws are very short. Maybe they are the problem but they look like they only hold the spring bumpers for battery. It must be difficult to put these bumpers back. But I must say I did 1. And the bumper is not falling out. So try those 3 screws first and then pry open the top.