I heard that you put toothpaste on it.
Buy a disc cleaner set they sell them in walmart.
Kaspersky mobile security gets rid of a lot of malware on your mobile phone, but nothing beats a hard reset, when Kasperky's not the solution, try a hard reset, this will do the trick.
drag it to the left where the arrow is on the home screen and just drag it of the phone to the left
Take it to blockbuster as they have a service to remove scratches from discs , it's around £2 per disc.
my methord is to smeer the disk with toofpast then wipe it off with and let it soak in soapy water
You are probably having issues lke dead pixels... you might have to ask the provider..
Place your phone is a well heated area but not too hot where it can be damaged. This should rid of any water over time. However damages to the phone are likely to be present on the screen and possibly function wise as well.
You can use Microfiber Cloth to clean your touch screen. Following are simple steps : Wash your hands and Make sure to power off your device. A small microfiber cloth is used to remove the dirt from both sides of your mobile. First of all wet a corner of the microfiber cloth wipe down the phone carefully and then use a dry corner of the microfiber cloth to remove all liquid from the phone. Use the microfiber cloth to clean the entire phone. Make sure to clean both the front and backside of the mobile.
my nokia 2720 on and white screen
.................................................................................Remove it
Unfortunately, the only way to get rid of the blue screen of death is to get a new hard drive.