Dropped cell in water

Hi, when a key on a samsung phone doesn't work,it's caused by the flex of the phone.
The flex is located inside the phone attached to the screen and allows the screen to display, control the keypad and the ringer that make the phone rings.

You will need to replace the flex for the phone to work normal again.

Take care.

Samsung doesn't have a driver specific to the R400 due to it being designed as a MetroPCS phone.

Try holding down the * key or the # key and see if the icon in the top right corner of the display changes. That is usually the problem.

you need to contact metro pcs to be able to get the unlock code for that phone

go to any market i mn good market of mob s/w they will unlock ur mobile
they'll charge u approx 150/-....thnx

My Samsung SCH-r560 screen went black, how can I fix this?

you need to take the phone to a mobile service center and hvae them reflash the firmware back into the phone.

you need to reset your phone to the factory setting first try it if not texting call your provider and let them refresh your account. thank you

Hi and welcome to FixYa,

Have you tried here?

Good luck and thank you for using FixYa..

Sounds like the LCD is missing a signal getting to it. One of the signal lines is either damaged, possibly still has a small amount of liquid on it and is getting a bunch of resistance it shouldn't be.

Open the phone up, and let it sit and dry fully for a few days.

You could always try dropping it back into the rye & coke, it seemed to prefer that to water =0)