Please read the following important notes before starting the upgrade: 

Before you proceed, please confirm that this software upgrade is a newer version than what is currently loaded on your device. If it is the same version and your device is operating normally, there is no need to reload the software. To determine what version is running on your device, refer to the image on the left (the newest version is pictured) and note the ROM version and Radio version.  Next, go to Start > Settings > Menu > All Settings > System > Device Information on your device.  If your ROM and Radio versions are different than what is pictured at left, you should upgrade.

If you are having challenges connecting with ActiveSync, please try the following on your device: Start > Settings > All Settings > Connections > USB to PC and de-select "enable faster data synchronization."

The standby and hibernation modes are disabled on the computer. Click here to view instructions on how to do this. If using a laptop, make sure your laptop is plugged into a power source.

All running applications on the computer have been closed.

Ensure that your device has a battery level of at least 50%. 

The update can take up to 25 minutes so set aside time when you will not be interrupted.

All data will be deleted from the device during the upgrade (music, pictures, 3rd party applications, etc).  Be sure to back up all of your data using ActiveSync (Windows Mobile Device Center, if you are running Windows Vista) prior to upgrading. Click here to view detailed instructions on backing up your data using ActiveSync.

       Information stored on the microSD card will not be deleted

Do not interrupt the upgrade process or press any buttons until the process has been completed (the device will reset itself when the update is done).

1.

Back up your personal data from the Mobile Device to your computer using ActiveSync (Windows Mobile Device Center, if you are running Windows Vista) if you want to ensure you don’t lose any of your data. Click here to view detailed instructions on backing up your data using ActiveSync.

2.

On your computer, run the ROM Update Utility (RUU) to install the ROM update to your Mobile Device. Click here to view detailed instructions on installing the ROM update.

3.

Restore your personal data back to your Mobile Device using ActiveSync (Windows Mobile Device Center, if you are running Windows Vista). (Optional) Click here to view detailed instructions on restoring your data using ActiveSync.

WARNING: During the upgrade process, do not attempt to make/receive calls, press any buttons on your device or disconnect the device from the USB cable as this will stop the update and your device will be rendered inoperable!!!

WARNING: Users should not attempt to load an older version of Touch Pro2 software after loading version 2.04.651.4.  Please delete any earlier versions of the Touch Pro2 software you may have downloaded previously to your PC.

ActiveSync (for Windows XP users)
http://www.microsoft.com/windowsmobile/activesync/activesync45.mspx

Mobile Device Center (for Windows Vista Users)
http://www.microsoft.com/windowsmobile/devicecenter.mspx

Microsoft Outlook Trial Version (for Windows XP and Vista users)
http://www.microsoft.com/windowsmobile/outlooktrial.mspx