Another success story 
Thanks to @Telemachus for your detailed procedure for upgrading the ET firmware. Also, thank you to @ogdento ,@jerryt and all other contributors.
I have an EasyTouch Lite PSL system, which had a v1.0 firmware, before the firmwares were combined. I snipped the main board's jumper, installed a couple of new relays and, using the USBDM, I successfully updated my ET PS Lite V1.0 to ET PS 4 V2.16. I now have more schedules available, an Aux Ex relay circuit, and 8 feature circuits! I may pull the board and solder in the missing resistor to further upgrade to ET 8, but for now I'm satisfied with the upgrade. I also have the 2.19 firmware file if I want to further upgrade later.
Here's a pic of my handiwork with the USBDM. Thank you to all the folks that posted the pinouts and other hints in the previous thread.
TFP has been a great resource - thanks again 
Thanks to @Telemachus for your detailed procedure for upgrading the ET firmware. Also, thank you to @ogdento ,@jerryt and all other contributors.
I have an EasyTouch Lite PSL system, which had a v1.0 firmware, before the firmwares were combined. I snipped the main board's jumper, installed a couple of new relays and, using the USBDM, I successfully updated my ET PS Lite V1.0 to ET PS 4 V2.16. I now have more schedules available, an Aux Ex relay circuit, and 8 feature circuits! I may pull the board and solder in the missing resistor to further upgrade to ET 8, but for now I'm satisfied with the upgrade. I also have the 2.19 firmware file if I want to further upgrade later.
Here's a pic of my handiwork with the USBDM. Thank you to all the folks that posted the pinouts and other hints in the previous thread.
TFP has been a great resource - thanks again
