How my phone lcd blank white but,touchscreen still work?

Probably it won't be usable because the sensors on the screen is corrupted. You need to replace it with a brand new screen.

Hi,there are two kinds of white screen in phone,
the first one is because of damage LCD (glass screen) ,
defective display driver (small chips that makes the display works)
and the other one is corrupted software...in damage lcd the phone will detected
by computer because its software is still working...so ,
the problem of your phone am sure is the second one ,
corrupted software....your phone needs to reprogram,and
need to go to the model of the phones care center to fix you problem...
And also flex can make screen go blank and or white.(if it is a flip phone)The flex is a connector that connects the screen to the phone board of the phone.That can also be the cause, when the flex is damaged,it can cause blank and white screen display .

i hope ,i will help you ,thanks for trusting fixya...

The LCD display is defective and needs to be replaced. Your touchscreen is probably OK, unless its been physically damaged.

The touchscreen can be salvaged if OK.

Please see this link to have this problem resolved:

http://www.sharc.net/gps_LCD_repair.htm

- Jim

If at you the white screen, it means that the loop has torn. Such usually happens on phones of such type.
http://heaters.agilityhoster.com/

Hi
There might be a Flex cable that disconnected in the phone, you will need to bring it to a cell phone shop or apple to have a look at it.

David
CellUnlock.net

It seems to be ur lcd stops working..Take this to service center...

Is the screen white or just dark?

Fix Sidekick White LCD Screen

If it dark or no light at all then

replacement of the Sidekick 3 LCD flip screen.

to buy a sidekick 3 lcd screen look here.
http://www.repairmysidekick.org/Sidekick-LCD-Screens/buy-a-t-mobile-sidekick-3-lcd

Look for one that has the torx screwdriver included

Call T-mobile if the phone is still under warranty. They may fix it for you.

If not follow this procedure, it usually works.

Fix Sidekick White LCD Screen

i have the same phone and the problem just lies on the flexcable inside the phone that attached the keypad to screen.

If your sidekick ID or Sidekick 3 screen is a blank white, then the lcd flex cable has come loose. It is a little difficult to repair but any one can do it. The worst that will happen if you try to repair yourself is that it will not work and you buy a replacement screen from ebay for 45 dollars.

Here are the detailed instructions. Just reinstall your lcd instead of putting a new one on.

Sidekick 3 LCD Screen Only Replacement


Here is a link to find lcd screen on ebay.

Sidekick 3 LCD Lens