Question about Samsung Katalyst SGH-T739 Cellular Phone

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Samsung Katalyst My phone won't turn on and when it decides to come on by itself it is just a white screen. It is fully charged. I have taken the battery out and put it back in. Every trick there is I think I have tried. Is there anything I might not have tried that would turn it on please let me know. I have to send it back to T-mobile in a few days and I need to delete and move stuff around before I do that.

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  • rememberneil Oct 25, 2008

    The on/off button quit working so the phone cannot be turned on.

  • Anonymous Dec 30, 2008

    i just had the same thing happen to me and I rushed to my computer and googled my problem.

  • hisbabygrl08 May 09, 2009

    My phone wont turn on but when i plug it into the charger the screen turns white and it makes the charging sound but when i take it off it wont turn on at all. the turn on button does not work at all or something.


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"mwright35" this is exactly not your same case but it is definetly the same than "remembermeil."

I got my phone wet and aftre drying it turned on but the on/off button was not working. My phone got discharged and then I thought I had lost my phone. Here is what I did and then my pone turned on, but I am not 100% positive this will work since I don't wanna try again.


Take a part the phone, including the "motherboard." This is very easy to do, you only need a small screwdriver. Here is the important part: Unhook the motherboard from the LCD display. I think that when you do that something resets itself. After, when you put it back together including the charged battery and everything, the phone will turn on by itself.

Posted on Nov 29, 2008

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How do i master reset my samsung t739 phone

From the standby screen enter:
*2767*3855# You had better mean it. Once you enter the # there is no turning back. Your Katalyst will be returned to its factory condition.

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Sometimes its the charging port that breaks and won't allow it to charge, if that's the case, you'll either have to live without it for a few days, or buy a new phone.

But if its the battery, you can buy a new one online at many different stores, try searching around to find the best price.

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Hopefully the screen connection might have loosened. If your confident with hardware, just open the screen connection and refit it. If it works, fine! else screen will have to be replaced.

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Reset katalyst sgh-t739

I did additional research and found the appropriate code which worked immediately.

From the standby screen enter:
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