Thank you for contacting palmOne Technical Support. My name is Tony and we will be assisting you with the noise in your handheld.
With regards to your email, we understand that you heard a loud electric noise in your handheld. To resolve this problem, please try to perform a Hard Reset to restore your handheld to factory default settings. Please follow the steps below.
Warning: A hard reset will erase everything on your device. All your data will be removed, and formats, preferences and other settings are restored to their factory default settings. Don't perform a hard reset unless you've backed up your data, or you're willing to lose everything.
Hold down the power (on/off) button on your device. Note: Some Treo smartphones have two power buttons. Hold down the one on the top of the unit next to the antenna.
While holding down the power button, turn over your device so that you can see the back of it. Using an unfolded paper clip or a similar small object, gently press the RESET hole on the back. When the device's screen displays the Palm Computing Platform logo, release the power button. A message will appear warning that you are about to erase all the data stored on your handheld. In response, do one of the following: Press the UP button to complete the hard reset, erasing everything on your device or Press any other button to begin a soft reset, leaving your data intact. Your device will then take you through a series of screens to calibrate the digitizer and verify the time and date. We hope this issue has been resolved to your satisfaction. A customer Satisfaction Survey will be emailed to you very shortly. Please take time to provide us with your feedback about this support experience as it will help us in our on-going effort to continually improve our services.
If you require further assistance, please do not hesitate to contact us again. You can also find troubleshooting articles and frequently asked questions at: http://kb.palmone.com