I think this can help you:
Treo 650 only
A zero out reset will regress a device that has non-volatile memory to its factory-fresh state. When done correctly, it completely rewrites your device's internal memory with zeros and ones, ensuring that any data is expunged. It should be used only if you want all information completely obliterated (example: you're selling your handheld, or you're sending it in for repair, and want to protect your privacy).
Tungsten E2 note: a hard reset (above) produces the same results as a zero out reset - completely rewrites data on internal memory. No need to perform the steps below.
A zero out 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 zero out reset unless you want to eradicate everyting.
Some third-party applications change the way your device backs up data. Other third-party applications do not back up data. If you have third-party software on your device, please contact the developer to learn what components are backed up during a HotSync operation, and if HotSync conduits are altered. Any data not backed up will be lost.
There are two ways to perform a zero out reset.
Quick Erase, Secure EraseLifeDrive only
- Read through these instructions before attempting the reset. We made this method of zero out reset extremely awkward to perform, so that it would not happen by accident. You may need the help of a dextrous friend if you find it too difficult to do by yourself.
- Connect your device to its HotSync cable or cradle. The HotSync cable does not need to be connected to your PC, and it does not need to be connected to power.
- Press and hold the Power button and UP on the 5-way navigator.
- While continuing to hold Power and UP, press and hold the HotSync button on the HotSync cable or cradle. As you press HotSync, make sure your other finger doesn't slide to LEFT or RIGHT on the 5-way navigator; it needs to be exactly on UP during the entire process. Although you are pressing the HotSync button, a HotSync operation should not begin.
- While continuing to hold Power, UP and HotSync, press and release the RESET button on the back panel of your device (where's the reset hole?). This is very difficult to do with only one person; you may wish to hold the stylus in your mouth and use your hands to press Power, UP and HotSync.
- Release Power, UP and HotSync.
- If you did this reset correctly, the screen of your device will go blank, and you will not be able to turn it on. The charging LED will not light up, even if it's connected to power. It will appear to be "dead." (any other activity — such as the Palm OS logo or a rainbow-colored Boot Log screen appearing — means the reset was performed incorrectly; try again)
- Your device will appear "dead" for several minutes (up to 10 minutes). During this time, your device's internal memory is being reformatted. If your device doesn't appear "dead" for several minutes with the screen completely blank, the zero out reset was performed incorrectly; try again.
- After several minutes, your device will "wake up" and the Palm and Palm Powered logos will appear as if you had performed a hard reset. Eventually, you'll be taken to a series of screens to calibrate the touchscreen and set date & time.
- If you want your handheld to remain in factory state, stop here. If you want to restore data to your device, follow the steps for recovering after a hard reset (a zero out reset is a special type of hard reset).
When you perform a hard reset on a LifeDrive mobile manager, you will see two options on the reset screen: Quick Erase and Secure Erase. Both of these are types of hard reset.
Perform a Quick Erase reset for a regular hard reset, to get your device to wake up and respond again.
This eliminates user information on the drive in such a way that there is no info available to anyone using the device. A Quick Erase reset takes approximately 5 minutes
Perform a Secure Erase reset if you are turning the device over to a new owner. A Secure Erase helps prevent your files from being restored or recompiled by a new owner who might remove the hard drive and use a drive reader to access your information.
This completely deletes all user info on the drive. A Secure Erase reset takes about 30 minutes
If you use a password to protect your device, you must do a Secure Erase when you hard reset your device; the Quick Erase option does not appear on the reset screen.
- Slide the power switch to the right and hold it in that position.
- While holding the switch to the right, use the tip of the stylus (or a similar object without a sharp tip) to gently press and release the reset button on the bottom of your device.
- Wait for the reset screen to appear (it will say "Warning, Erase all data?"). Then release the power switch.
- Choose your type of reset:
- Press Up on the 5-way navigator to perform a Quick Erase (5 minutes)
- Press Down to perform a Secure Erase (30 minutes).
- During the reset process, a status screen appears with the words "Quick Erase" or "Secure Erase" and a progress bar, followed by screens showing the Palm, Palm Powered and LifeDrive logos.
- Then you will be prompted to tap the screen to align the digitizer and select the language you want to use on your device. A screen appears showing the Palm logo and a progress bar.
- When the "Welcome: Setup your device" screen appears, the hard reset is complete. Follow the onscreen instructions to set up your device.