Question about Samsung SYNC SGH-A707 Cellular Phone

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My phone keeps shutting itself off once I tried to turn it on.

So once i press and hold the power button, then the phone start to turn on and the loading screen with the bar pop up, but once the bar is finish loading the phone automatically shut off and start loading again, and this process continue on and on. is there anything i can do to fix this problem?

Posted by on

  • mjg9829 Aug 31, 2008

    My Samsung SGH-A707 phone stays on about 1 minute then shuts down and then it powers up on its own. This problem just keeps repeating. I have already replaced the battery but the promlem still occurs. Any more ideas?

  • Anonymous Mar 22, 2014

    when i press the power button it turns on and off ive had thi phone not long but its not new and it just started doing this. I took the battery out and everything but it is still doing it

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  • Master
  • 446 Answers

Replace the battery pls

Posted on Aug 30, 2008

  • ariel santos
    ariel santos Sep 04, 2008

    the firmware is corrrupted, you need to send this to a repair shop

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1 Answer

Phone turned off itself and i turned it back on, it now says "try again in 538472 minutes"


Do a Full Reset THIS WILL DELETE EVERYTHING!!!!!!!

  1. Press and hold the Volume down and Power buttons at the same time until you feel a vibration (about 10-15 seconds).
  2. When you feel the vibration, immediately press and hold the Volume down button until you see a large exclamation mark.
  3. Once the exclamation mark appears, press the following four buttons in this order: Volume up , Volume down , Power , Volume down . Your phone should now reset and restart itself. (It might take a while for the reset to finish.)


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You can first try doing what's called doing a Soft Reset. It's the first and preferred method to try as you don't lose any files or settings. Hold the power button until the Nook turns itself off. In most cases that will be twenty seconds or more. Then turn the power back on by holding the power button down for about two seconds. Hopefully this will allow you to complete a normal boot process. The second and more dramatic way to get a working Nook back is what's called doing a Hard Reset. This process will put your Nook back to "Just Out of the Box" mode. You will lose any files and settings stored internally inside the Nook itself. The good part in all this is it won't touch anything stored externally on your external SD Cards. To do a Hard Reset Turn the NOOK off completely. Hold the Power button and Home (n) buttons. The device will turn on. Continue to hold both buttons until the device shuts off once again (~15-20 seconds). Turn the device on normally. It will prompt for a factory reset. Press the Home button twice to confirm. ------- The important part in the above is to be sure you start the Nook via holding down both the power button and the Home (n) buttons at the very same time and keep them both pressed down until the Nook turns itself off.

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Sound like you have to restore the phone and if still persist..phone replacement if battery is good.If you have an SD card in phone remove it please. Make sure your picture and contacts are backed up to SD card. This will take phone back like new.
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1 Answer

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A couple options. Haven't tried so you'll have to see if they work.
Try booting into recovery mode and clearing the cache:
1. With the phone turned off, hold the Power and Volume Down button for several seconds until the device turns on
2. Select recovery mode using the volume buttons
3. Clear cache.

You may have to do a hard reset, however:
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1. Remove your SD card
2. With the phone turned off, hold the Home and Volume Down button and keep pressing them, then
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1 Answer

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Try this reset, it may work:

-Turn Off power switch
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Do not hold the power button down while pressing the "0" key - it'll shut the computer off again. You just need to push it once to turn the power on and then hold the "0" key immediately after you push the power button on - just like turning on the laptop, but this time you're holding the "0" key down.

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1 Answer

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Sounds like you need to reset your SMU and NVRAM:

To reset your SMU:
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  2. Unplug all cables from the computer, including the power cord.
  3. Wait 10 seconds.
  4. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
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  6. Press the power button once more to start up your iMac.

To reset your NVRAM:

  1. Shut down the computer.
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1 Answer

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3. Keep holding down Power button and let Resume button go.
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1 Answer

Phone doesn't power on


If iPhone won't turn on, or the display freezes or doesn't respond
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More resets:
Try This:
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Also, Try this:
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