water damage/missing smt capacitor/resistor from logic board
So I dropped my iPhone 5s into some water on Friday night. Afterwards I disassembled it and left it in a sealed bag along with a load of desiccant bags and placed the bag in a vacuum oven at 40 degrees for a few days. I went to reassembly it yesterday and managed to break the FPC socket for the power button/volume flex cable.
I've a new socket ordered already and removed the old one today. When removing the old one though, I managed to wreck something else! I've lost a component from the logic board that sits right beside this FPC socket. I'll attach an image showing the component circled in red that I'm missing. Can anyone please point me in the direction of where to buy one of these?
Also, when working at this, I came across part of the board with "scorch" marks where I'm assuming the water has done the damage. I've cleaned it up with some IPA (Isopropyl, not ale! lol) and it looks clean enough now but I'm wondering what part of the logic board would this be for?
Can't see how to add a pic here, i'll post this for now and upload a pic and reply below with a link.
The thing is, I've kinda gave up on it but I feel I have to know if the vacuum oven sorted the water damage!
I've attached two pics to this post. One shows the board after cleaning off the scorch marks and the other is just a screen grab off the internet where I've marked the missing component (red circle) and the green shows where the scorch marks were).
Thanks for your help so far mate. Much appreciated!
So I've taken the motherboard right out and noticed a load more "scorching" on the underside of the area I'd marked in green above. I've an image attached below. Tried taking another through a microscope to show the extent of the damage through the little holes in the metal casing but it doesn't show up very well.
How would I go about removing this casing safely? Can it be done without damaging anything else?
I think I'd like to identify which components are burnt out under it and get them replaced. Maybe if I'm lucky this is all that was damaged before the phone powered down...
OK, so I've the capacitor ordered and took the board out, removed the EMI shield with a heat gun to inspect the underside of the logic board. Thought there was a totally melted component but it was just some sort of black coating over a capacitor that had melted. I've before and after cleaning images attached to this post. Do you think I'd get away with not having to replace any of these components?
Also, what about that black coating? I've seen it on other parts of the board, would I need to recoat that cap? We've some black silicon in work, would applying a small amount from a syringe suffice?
Lots of questions, I know, so thanks again! I've a feeling this just might work!
Is this a good question?