Download the Current EcoPak Control Software Zip file.
You must unzip or decompress the file.
Put the program on a USB stick
Make sure there is no other content in the USB stick
Plug the USB stick into the processor card
Reset the power
Green and yellow lights will start fl ashing, wait until the yellow light goes out and just solid green is there (takes 40 seconds or so). Do not remove the usb stick during the upload process.
Unplug the USB stick then reset the power
Green and Yellow lights flash again and spa boots up with the new software.