Question about Straight Talk LG840G Cell Phone

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Lg840g won't hang up and screen goes black during calls

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Posted on Jan 02, 2017

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SOURCE: screen goes black after making a call making it

I have a fusion2 and it does the same thing. I think they suppose to work like that. You can set your screen to stay on longer by going to display. I hope this help.

Posted on Oct 02, 2013


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On my mega pop phone screen goes black when I make a call and can not hang up, have to power off . Not all the time just 4 out of 5 times.

in call settings you can set your hang up button to be your power button which just need to be pressed but not long enough to turn your phone off.

May 11, 2016 | Cell Phones

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Why does screen go black after call?

You need to disable the proximity sensor. The use of the proximity sensor is to detect if the phone is up to your ear during a call, to turn the screen off. However if there is debris on the sensor or even a screen protector over it, it constantly thinks it is up to your ear, hence blacking out the second you make a phone call.

You can go into settings and call settings to disable the proximity sensor.

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Any tricks to turn on my LG840G with broken power button

Plug in phone, and remove charger as soon as, or right before phone turns on, then constantly press buttons on bottom of the screen.

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your speakers are going out.

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Acer aspire 6930 6941 won't boot

won't get the check disc option until it boots up and from your description is is a hard drive problem
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When making a call on my Android phone the screen goes black and even when I move it from my face it stays black. I can't hang up the phone


When this starts happening with my Android phone, it usually means that the screen got dirty from the oils from your skin, which blocks the sensor that tells if your face is next to the phone during a call.
You should clean the screen off with a soft cloth: 100% cotton, or else some kind of microfiber (cell phone stores sell things specifically for this purpose, but I usually use a clean t-shirt) and then it should work just fine again.

The other thing you can do is press the power/lock/wake button to make the screen wake up again.

Let us know if you have other questions!

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Lg km900 blank screen during an incoming call -

There is a little rectangle shape thing next to the lg logo on the top of the fone screen. If this is blocked by screen protector it will cause the phone to blank of during calls. Its a power saver that blanks the phone when its near your face. Try it. Take off the screen protector & make a call. Then place your finger over the little thing & the screen goes blank. Just cut a lil space in the screen protector & that will fix the problem

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