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Help Blank Screen During/After a Call

J

johnjrubadub

Lurker
Hi everybody!

I have an HTC Desire and I managed to break the LCD. I had the LCD and touchscreen replaced (don't ask long story) and now I have the following issue:

When I make a call and even before I lift the phone to my ear the screen goes blank. None of the buttons work but the call is fine - I can be heard/hear the other person. When the other person ends the call the phone bips to tell me the call is over, but the screen stays blank. I can re-activate the screen by receiving a missed call - ie calling my phone and then hanging up re-activates the screen. In addition, when my phone rings the screen is fine, but as soon as I answer the call and lift the phone to my ear the screen goes off as before. The only other way to bring the screen back is to remove the battery. Whilst the screen is blank I loose all touch-screen capability too.

Everything else on the phone works perfectly, sync to email, text, GPS, camera, internet etc all not a problem.

Any ideas or have I truely rodgered my phone?

Thanks
 
I think I know what this is. It's the proximity sensor, when you place the phone near to your ear, it goes blank (may be to save the battery). If you have a plastic cover or something that is blocking the sensor, that could be it. You can press the power button and will bring up (don't have to remove the battery).

HTH,
Pav
 
The screen goes blank when in close proximity to your ear/head so you can't inadvertently make button presses, was a major problem with an older touch screen phone i had.
 
Download a sensor test app. The value for the proximity sensor should change when you put you finger over the screen surround to the left of the HTC logo. If it doesn't your screen protector is stopping it working or its fubar'd. If it changes, problem is something else.
 
Cheers peeps. I will try downloading a diagnostic. None of the buttons work and I don't have a screen protector. It's weird as the phone is blank unless I remove the battery or if I get a missed call. Will let you know how I get on.
 
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