1. Uninstall the existing Portsmith Driver
   a. From the Start Menu, navigate to Settings.
   b. In Settings, navigate to System.
   c. Select Remove Programs
   d. Select "Portsmith Portsmith PSDUE Driver".
   e. Select the Remove button to uninstall the driver.

2. Install the new Portsmith Driver
   a. Connect PDA to PC using the USB Programming Cable.
   b. From Windows Mobile Device Center window, select "Connect without setting up your device".
   c. Hover mouse over "File Management", then select "Browse the contents of your device". This will open an Explorer window.
   d. Navigate to \\Program Files\KVL\Upgrades under the PDA drive. Copy new driver install file, PSDUE.cab, to this folder.
   e. Close the Explorer window, then disconnect the PDA from the USB Programming Cable.
   f. Select the Start menu on the PDA and open File Explorer.
   g. Navigate to My Device\Program Files\KVL\Upgrades using the drop down menu.
   h. Select (single tap) PSDUE.
   i. Select "Device" and the location to install the driver, then select Install to initiate the install process.
   j. After the window displays "PSDUE.cab was successfully installed on your device", select OK to complete the install.
   k. Select 'X' to exit File Explorer.
   l. The new driver is ready for use. Reconnect the PDA to the SA.
   m. Press the red power button until the KVL 4000 reboots. 