Or are you the kind of person that may accidentally drop the old brick in the water? Sure you are. That is why this Instructable is for you.
I will be presenting you a way of protecting a mobile phone from water damage. Two weeks ago, my mobile went for a bath. I managed to fix it, and I will tell you how to prevent the kind of damage I found inside it.
How water damages circuits:
Water isn't the big threat. Short circuits are. When a circuit gets wet, most likely it will short-out. The second thing that causes damages are oxide bridges. You ask what oxide bridges are: water corrodes the metal in the circuit, causing oxide to build-up. That effect is caused by water and salts dissolved in it. If water can't touch metal, no corrosion can take place.
Step 1: Gather Weapons & Ammo!
- Torx T6 screwdriver
- Acetone if your circuit is greasy
- Paint brush
- Something to contain used solvent
- Electrical tape
- Petroleum jelly
- Guitar pick or something similar
- A piece of string
Of course, you should work with gloves so as not to get varnish or acetone in your hands or unwanted grease in the circuit board.
Step 2: Tearing the Bugger Apart.
Proceed to remove the 6 T6 screws and put them somewhere safe (not the bank, the government might steal them).
Third photo shows what you get.
From this step on, take precautions against static. Touch the grounding pins on the wall socked. Ups, sorry. You might not reach it somewhere in the world. What can I do? Touch something grounded instead.
Alternatively, you can sledge-hammer it all.
Step 3: LCD Off!
Step 4: Shields
Step 5: Degreasing
Step 6: Places You Don't Want Coated With Varnish
Step 7: Real Business
This is what it should look like in the end. I know the coating isn't perfect, the spray head was almost broken.
Now everything's ready for the next step. You're almost done.
Step 8: Clean Contact Patches
Step 9: Assemble and Test
Step 10: Done
Have fun doing good stuff.