How to save cellphone from water damaged?
Nowadays, cellphone is one part of ourselves, how to protect our cellphone. When your smartphone is water damaged, what would you do?
Cellphone cannot start up, call with noise, display not normal, even it cannot repair well, since the Circuit Board corrode too much.
So, the first step is to take out the battery to avoid long time corrosion. (Should NOT start up the cellphone, otherwise, the inner circuit board will short circuit, even burn out.)
If it meets clear water, you can take it easy, maybe the water make some inner parts bad welding. There are two steps need to do now.
A. Clear the cellphone by Absolute alcohol ----alcohol volatile fast together with water on phone.
B. Dry the circuit board by Air Gun carefully, BUT NOT Hair dryer.
Air gun: Hair Dryer
Normally almost cellphone will work well after above solutions. If not, the inner parts may get rusty, have to double weld!
But if dirty/salty water gets in, please follow below steps.
Clear cellphone right away, dirty water will corrode circuit board, the worse the longer invasion. Use soft hair brush to clean dirty in the phone, ultrasonic cleaning apparatus is recommended under serious situation.
And then, dry by air gun, double weld the inner parts.
If cellphone still does not work, e.g. cannot start up, have to double check out, the circuit board broken or spare parts short circuit. During trouble shooting, usually it caused by Power supply IC issue. It will go well after change power supply IC. You need this Tin plate plant and Soldering paste.
PS: To avoid risks, the best way is to protect our cellphone with waterproof case.