No backlight due to water
cleaned th phone with wet cloths and then cleaned with isopropyl (Rubbing alcohol ) which goes inside and visible through the screen . alchohol is bad conductor of electricity . i put the battery inside and charged also . worked for 30 minutes but after removing charger it was working suddenly .it start blinking and back light went off. The icon s are visible(DIM ) at some angle with external light . Phone is working , touch screen is working .So what i have to replace or it will be OK just by cleaning .