[Elecraft] W2 Watt Meter firmware load?

[Glenn Maclean]

I recently put my K line station together K3S, KAT500, KPA500, P3. They are all working great! I have added a brand new  W2 watt meter. It came with version 1.0 firmware which from what I understand has not changed in many years and is the latest version. I was testing my new W2 watt meter and it does not seem to go into firmware load mode. I hold both the on button and sensor button while powering the W2 on. I do not get the left blinking light as the manual states. What am I doing wrong? I would like the firmware load mode to work in the event I need to reload firmware. I am able to send commands to the W2 with my computer.
Any help would be appreciated. 
Thank you,
Glenn Maclean WA7SPY