Question about Samsung SCH-u740 Cellular Phone

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Samsung SCH-u740 problem - front screen stays on and speakerphone switches automatically

I've had my phone for about 4 months. Within the past two days, after no memorable trauma like dropping or getting wet, my phone's front display screen stays lit at all times instead of shutting off after a few seconds like it used to. I've tried to adjust the settings but nothing turns it off completely.

Also, the speakerphone will turn on and off repeatedly, on it's own during a call or even when the phone is just on.

The text message notification sound also cuts itself off before it finishes vibrating.

Any help would be greatly appreciated!

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  • scphilli2 Jul 31, 2008

    this same thing just started happening to me! the front light staying on and speaker phone coming on! anyone have any suggestions? i checked the water damage indicator and it is white with pinkish purple x's on it...does that mean it was water damaged??

  • eviltwinn2 Nov 03, 2008

    i am having the exact same problem!!!!! help please

  • caps11was Apr 17, 2009

    my phone screen doesnt work in landscape mode dats all.
    but in portiat mode it works fine.. i tried resteing it by going to
    phone setting> sercity> reset but i didnt fix it.
    i droped my phone in the sink withe the water runnging so im thinkin thats the problem.

  • Anonymous May 08, 2009

    I have the same problem. The front screen is staying illuminated and the side buttons for the volume don't work anymore. Mine got a little wet (sweaty) when I was running a couple days ago but I didn't think that was enough to break it.

  • Anonymous May 25, 2009

    Just as many have written, the front and inside display do not turn off when the phone is sitting idle.

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I would recommend a hard-reset of the device. Keep in mind that this will delete all of your contact information and customized settings.

On a side note, be careful not to accidentally press the speaker-phone button on the right side of the phone during a call. I used to have this phone and I would sometimes do it without even realizing it.

Posted on May 02, 2008

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It seems like the inside screen stays on as well. Does the phone know its closed?

Posted on Nov 03, 2008

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Samsung sch-u740 only works in speakerphone mode


Its not speaker its problem with the software in the phone.
I had this problem on my phone and i did a software reset giving it to a repair shop and it was a easy and cheap fix .
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