My nokia N73 have problem After I press switch on button phone start but after 10 second it will switch off and then swicth again then on automatically. It repeat and repeat and repeats again.

<span> <p>Nokia Became the Most Admired Mobile Phone Manufacturer and Most of the World mobile phone users have <a href="http://www.messiphone.com/mobile-secret/nokia.html">Nokia phones</a><br />But some models are more popular than others like N72, N73, N80, N81, <a href="http://www.messiphone.com/mobile-secret/nokia-n95.html">N95</a> and NSeries. <br />To fix some problems ( eg : get infected with virus, some system errors or installed too much software on it), many users asking me how to format Nokia NSeries Phone</b>.<br /> <p>So here are 3 ways method to format your Nokia NSeries cell phones<br /> <p><br /> <p><span> <p>Method 1<br /> <p>1. Turn off the mobile Phone.<br />2. Press and Hold the following three buttons: Green Call Answer button</b> + the "*" button</b> + number "3&prime; button</b>.<br />3. While holding these buttons, press the power button</b> and switch on the phone.</b><br />4. When the message 'Formatting</b>' appears on the screen, release all of the buttons</b>.<br /> <p>Method 2<br /> <p>1. Switch off your Noki</b>a mobile phone<br />2. Now Press following key sequence *#7370#</b><br />3. Enter Default lock code is 12345</b>.<br />4. While holding these buttons, press the power button</b> and switch on the phone</b>.<br />5. Wait for message 'Formatting</b>' to appear on the screen and release all keys once you see that message.<br /> <p><span> <p>Method 3<br /> <p>1. Switch off</b> the phone.<br />2. Hold down *#7780#</b> button.<br />3. While holding these buttons, press the power button</b> and switch on the phone</b>.<br />4. When the message 'Formatting</b>' appears on the screen, release all of the buttons.<br /></span><br /></span><br /></span>