When i press the power button the phone vibrates and the sonyericsson logo appears after that the screen goes black and the phone goes on restarting. please help me

HAVE YOU TRIED CONTINUEING TO HOLD VOLUME DOWN BUT RELEASING POWER BUTTON AS SOON AS ANDROID LOGO/MAN APPEARS

1. Take your phone and turn it off - just press power button and select "power off".
2. Wait while your device is shutting down.
3. Then, press volume down button and power button together until the LG logo appears on the screen.
4. When the LG logo is displayed, let go of the power button, keep pressing the volume down key and then press once more the power button.
5. Once you do that, on your LG G2 the factory reset menu will be displayed.
6. Press power button in order to agree and wait while the hard reset is being completed.

You could try re-setting your iPhone. This does not delete any data on the iPhone but forces it to re-start as if you had just turned it on. Hold down the power button while at the same time pressing and holding the home button until the screen goes blank and the Apple logo appears. Now let go and it will continue to re-start as normal.

1. If the iPad is frozen or stuck, hold down both the Sleep/Wake button and the Home button. This will force the iPad to power down.
2. The iPad screen will display the circle of dashes which indicates it is busy. Once the iPad has finished shutting down completely, the screen will go completely black.
3. Once the iPad's screen is completely black, hold down the Sleep/Wake button for several seconds. This will allow you to restart the iPad.
4. When the Apple logo appears in the middle of the screen, you can release the Sleep/Wake button. The iPad will restart shortly after the logo appears.

WARNING : Performing a hard reset will remove ALL data including the Google account, system data, application data, application settings, and downloaded applications.

1. With the phone off, press and hold the Home key, Volume Down key and Power button. When the LG logo appears, release only the Power button.
2. Release the Home key and Volume Down key when the Android icon appears.
3. Follow the on-screen instructions.

Try a hard restart, holding the home + lock buttons for ~30 seconds.

I have about 65 iPhones in my organization that I manage. I have had a few of them have this problem. It seems that the microphone at the bottom of the phone goes out/goes bad. Usually the sound through a bluetooth headset or the/a wired headset still works. The only permanent solution is to replace the phone. If you are eligible for an upgrade, I hear that the 3GS's are going down to $49 from $99 this month.

Hope this helps.

hi


try to reset your phone



To reset i Phone, press and hold the Sleep/Wake button and the Home button at the same time for at least 10 seconds. During this time, a red "power off" slider may appear and the screen may go black, but do not release Sleep/Wake and Home buttons until the Apple logo appears.

If i Phone won't turn on, or the display freezes or doesn't respond

1. Press and hold the Home button for at least six seconds, until the application you were using quits.
2. If that doesn't work, turn i Phone off and turn it on again. Press and hold the Sleep/Wake button on top of i Phone for a 10 seconds until a red slider appears, and then slide the slider. Then press and hold the Sleep/Wake button until the Apple logo appears.
3. If that doesn't work, reset i Phone. Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears

More resets:

Try This:
1. Remove Sim Card
2. Hold in 'Home' button and 'On/Off' button together until Apple logo appears
3. Replace Sim Card
4. Hold in 'Home' button and 'On/Off' button together until normal phone screen appears.


Also, Try this:
1.) Shut down the i Phone 3G.
2.) Start up i Tunes
3.) Hold down HOME button on the i Phone 3G
4.) While keeping the HOME button depressed, plug in the Sync cable
5.) A message will pop up to ask if you want to reset.
6.) Just click YES and the reset process should start.
if this was helpful kindly vote for this answer..


thank you

This may not fix it if you "jail broke"it:::

Download the latest iTunes to your computer and reset the iPhone. Then re-sync it.

Reset

To reset iPhone, press and hold the Sleep/Wake button and the Home button at the same time for at least 10 seconds. During this time, a red "power off" slider may appear and the screen may go black, but do not release Sleep/Wake and Home buttons until the Apple logo appears.

If iPhone won't turn on, or the display freezes or doesn't respond

1. Press and hold the Home button for at least six seconds, until the application you were using quits.
2. If that doesn't work, turn iPhone off and turn it on again. Press and hold the Sleep/Wake button on top of iPhone for a 10 seconds until a red slider appears, and then slide the slider. Then press and hold the Sleep/Wake button until the Apple logo appears.
3. If that doesn't work, reset iPhone. Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears

More resets:

Try This:
1. Remove Sim Card
2. Hold in 'Home' button and 'On/Off' button together until Apple logo appears
3. Replace Sim Card
4. Hold in 'Home' button and 'On/Off' button together until normal phone screen appears.


Also, Try this:
1.) Shut down the iPhone 3G.
2.) Start up iTunes
3.) Hold down HOME button on the iPhone 3G
4.) While keeping the HOME button depressed, plug in the Sync cable
5.) A message will pop up to ask if you want to reset.
6.) Just click YES and the reset process should start.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

did you try restarting it(hold the home n lock button for 10 sec)