The screen goes blank when I phone someone - LG Km570 Cell Phone

isn`t there a button that relights the screen? Is this phone still under warrantee ?
Can always call your provider and ask for tech support they usually do it for free or loose a customer.

i guess ur operating system might have got corrupted .u need to install it again. go to nokia services center

its software fault install new software

Screen is prob damaged & needs replacing?

try restoring your phone to factory settings

Reviewed by Geoff_W from UK on 26th Jun 2009
A GREAT PHONE - spoiled for many by the screen blanking problem on making or attempting to receive calls. Some seem to have solved the problem by removing screen protectors, but this didn't work for me. I sent the first phone back for a replacement - but this was just as bad. The problem seems to be the result of a poorly calibrated proximity sensor - but you can re-calibrate it. The following procedure worked for me, but it's potentially dangerous, and could ruin your phone if you're not careful - YOU HAVE BEEN WARNED! 1. On the phone keypad enter the following code: 1809#*900# to bring up the engineering settings menu. 2. Scroll down to the entry called OTHERS and select it. 3. Scroll down this menu to the entry called PROXIMITY and select it. 4. You should see three options: Enable, Disable & Start Calibration 5. Select Start Calibration - after a few seconds it will return a new figure (mine was 3627) 6. BACK right out of the menu system, and make a test call - it should blank the screen when you hold it to your ear (or when you hold a finger near the sensor), but come back on again when you remove it. It worked for me - so now my Viewty Smart works just as it was supposed to. This information is offered without warranty - Good luck if you try it! 4 stars for the phone design - loses one for the delivery set-up, and lack of documentation of a fix.
This method worked for me.

dear customer thanx 4 visiting fixya...
u said ur phone is restarting...it is because of virus attaking to ur phone...so u need to formatt ur phone....
to format ur nokia phone u need to press *#7370# in ur phone..after tat it asks security code ...default security code is 12345....if u enter security code ur phone'll formatt.....

you need to take the phone and have it upgraded

My daughter is now going through two replacements for the screen going blank on this model. I'm still having to pay a deductible for a phone that was replaced the first time for the same problem this time. Evidently this is a common problem with this phone.

your phone thinks thinks you are dialing someone