SGH-D500 white screen'
when you turn on your phone and the screen is white' even you restarts and nothing change' make sure that your phone is can recieve and you can make a call' the prob. is the flex ribbon of your phone, there is a flex connected in the LCD to the board' or the machine. D500 phone always having this prob, all sliding and flip phone having this prob.
by replacing the flex ribbon' you can solve your prob.
by a skilled cellular technician.