To update the firmware on your WFM2200 you'll need a flash drive with the latest firmware that can be downloaded from tek.com. Be sure to unzip the file and load it into the main directory of a USB flash drive. Then load the USB flash drive into the Waveform monitor. Press the Configure button on the front of the unit, arrow down and select the Utilities option, then go to System Upgrade, arrow over to USB Upgrade and press the select button.  */