Since earlier today I started experiencing problems on my HTC Desire with the proximity sensor. For those that does not know, the proximity sensor switches the screen off when you receive or make a call and places the phone against your ear. When the call is completed and you remove the phone from your ear, the screen become active again.
In my case the moment I make or receive a call, the screen gets disabled. I do not even have to put the phone against my ear. It also means that the touchscreen is disabled and all buttons are disabled which means I cannot end the call, switch on the speaker or enable the keypad. None of the buttons, even the power one works. When the call gets ended by the other party the the screen will be enabled again. The only way to get a working phone again when there is nobody on the other side to end the call is to remove the battery.
What I also find weird is where the sensor should be, top left next to the HTC logo, is nothing. Does not matter how I look at it, there is just the black strip.
I have found some form of work around by using the earbuds and making/receiving calls like that. This is not ideal but it is a working solution.
I have searched to see if there is some app that can disable the proximity sensor since I do not really need it but have found nothing. So if anybody knows of an app that can disable the proximity sensor then I would appreciate the link. If you have any other suggestions, please comment below.
Update: Based on the comment from Bob Peers, I used a vacuum cleaner and vacuumed over the top area of the phone. This must have suched all the dust out of there since the sensor is now working as it should be. Who would have thought it is something so simple. Thanks again Bob.