Proximity sensor not working correctly...screen won't turn back on!

Alright so I'm loving my iPhone 4, but I've been having one glaring issue: the proximity sensor turns off the screen during a call(as normal) but then the screen won't turn back on until I lock, force hangup and lock again. Very frustrating because I was unable to dial a number to be transferred while in a call. Seems like the same issue is going on with other iPhone generations upgrading to iOS4 in the other forum sections, but I'd never think it to happen with a brand new 4. Could it have been my restore file from my 3GS?
Anyone else having this issue? Thanks.

finniii wrote:
If resetting the phone from Settings -> General -> Reset -> Reset All didn't do the trick, try doing a hard reset: at the same time, press and hold the home button (bottom of the phone) and power/sleep button (top of the phone) until it restarts. That seems to do the trick for almost everyone.
Will doing the hard reset lose all my settings and data, like the erase iPhone option?
Or will it just reboot it keeping all settings etc?
Many thanks.

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@jamesfl621 ,
Hello and thank you for posting on the HP support forums. Try doing a hard reset with your notebook.
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Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
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Leslie8120 wrote:
Radishface wrote:
Hello.
Recently, my Z10 hasdeveloped a very strange problem: light and proximity sensors would not work on the device. My Z10 no longer auto-dims the screen, and the screen stays on during calls. According to BBVE, light and proximity services are both listed as unavailable, and tests could not be carried out for them. Restarting the device seems to fix the problem temporarily. I am completely out of ideas what to do next, since this issue is very annoying. So far, I have tried:
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Did this problem occur suddenly or have you donwloaded any apps (android port) before the problem started ?
Hi there!
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Leslie8120 wrote:
Radishface wrote:
Hello.
Recently, my Z10 hasdeveloped a very strange problem: light and proximity sensors would not work on the device. My Z10 no longer auto-dims the screen, and the screen stays on during calls. According to BBVE, light and proximity services are both listed as unavailable, and tests could not be carried out for them. Restarting the device seems to fix the problem temporarily. I am completely out of ideas what to do next, since this issue is very annoying. So far, I have tried:
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Performed OS reload via BB Link
Used an autoloader to load developer OS
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Did a security wipe
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Did this problem occur suddenly or have you donwloaded any apps (android port) before the problem started ?
Hi there!
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Good Luck anyway.

Proximity sensor not working correctly...screen won't turn back on!

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