Software update
F
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F. SOFTWARE UPDATE
To find out which version of firmware is installed in your unit, use the
Configuration
About
menu.
To check for Firmware updates, contact Palmer Wahl Customer Service at (800) 421-2853, (828) 658-3131 or email
To update the firmware, proceed as follows:
1. If necessary, install on the PC the USB driver for communication with Wahl Instruments. Contact Customer
Service.
2. Disconnect the leads connected to the measurement and simulation terminals.
3. Connect the instrument to the PC using the USB lead.
4. Download and run the firmware update program.
5. Select the language then the file containing the firmware and download in the first stage.
6. Choose the communication parameters that match the parameters of the TC621. The communication port used
is a virtual port which does not correspond to a physical port on your computer. The other parameters to be
selected are defined in the diagram below.
7. Confirm the update by pressing “OK” and wait for the firmware to load into the unit.
