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Help Screen not coming back on after a call

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daneaston

Newbie
When I make/receive a call, the screen (usually) goes off once the phone is next to my ear, but it no longer comes back on. The only way I can hang-up is by doing a hard reset each time.

I've contacted Samsung who say the phone may "need a software reset, or re-flashing of the firmware, in order for it to operate normally again."

This means I need to go all the way to a service centre which is anything but local. Can I do this myself?
 
Do you have a screen protector or a case that might be blocking the proximity sensor (near the ear speaker)?
 
Have you got a screen protector or anything obscuring the Proximity sensor?

Edit > Ninja'd
 
sdrawkcab25 said:
Pressing the power button doesn't turn the screen on?
Click to expand...

No, pressing buttons doesn't work. Sometimes when the other person hangs up the screen comes back on, but calling voicemail is the real pain - it won't hang up on me (so I have to do a hard reset each time) and I can't use the keypad to delete/replay messages!

Yesterday I was on the phone for nearly an hour and the screen stayed on the whole time.

Yes, all the protective plastic has been removed. I've had the phone a couple of months and this problem has developed over the last four days.
 
Same thing just started happening to me today, but its only been twice. Im hoping it doesn't keep on, I would really hate losing all my music, photos , apps, and games.

Idk why but I think this mightve come from the t-mobile ota update I just got a few days ago.
 
Ah - new twist. I just made a call and it started ringing before I put it to my ear but the screen turned off. It seems to not be the sensor, but the phone randomly switches off the screen when in a call.
 
daneaston said:
Ah - new twist. I just made a call and it started ringing before I put it to my ear but the screen turned off. It seems to not be the sensor, but the phone randomly switches off the screen when in a call.
Click to expand...

No, that means it IS the sensor.

If the screen goes off when you make a call, it means the sensor is reporting a low light value. So if it goes off before you put it to your face, its reporting too low a value.

This would also mean that if its reporting too low a value, the screen wouldn't come back on either.

As far as android is concerned, Low value = phone next to face. Phone next to face + in call = Screen off.

The main reason for low value, is something like a screen protector blocking the light to the sensor. Since this is not the case with you, something else is blocking the sensor or the sensor is faulty.

Regardless of whether its the seller or the manufacturer who covers the warranty, this IS a warranty cover repair
 
I've had this happen a few times. Yesterday I tapped the Play Store icon and my screen went blank. I had to pull the battery out before the phone would reset.
 
I have had the phone for 2 weeks now and also noticed something similar.

I do have a screen protector, but it not blocking the sensor.

After I call the voicemail service, it asks to enter the password. So take the phone away from the ear, press the keypad icon so that I can get the number pad, but then when I try to press any number, it blanks out. It does this every time. I have not tried this with normal voicecalls yet as they don't need you to press any numbers.

If I swipe across the top of screen where the ear piece and sensors are, it then stops the screen from blanking out.

Really annoying.
 
SUroot said:
No, that means it IS the sensor.
Click to expand...

You're right. Just made a call. If I had the phone pointing into the room, the screen went off, but by pointing it to the window, the screen would come on. It's as if the sensor's sensitivity has suddenly become really, really low.

There's nothing over the sensor and I can't see anything behind the glass of the screen that may have got in there to block it.
 
daneaston said:
You're right. Just made a call. If I had the phone pointing into the room, the screen went off, but by pointing it to the window, the screen would come on. It's as if the sensor's sensitivity has suddenly become really, really low.

There's nothing over the sensor and I can't see anything behind the glass of the screen that may have got in there to block it.
Click to expand...

Yeah. Best bet is to contact samsung really. More likely than not its a symptom of a manufacturing defect. Unless its been dropped
 
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