Hello @james.nutrainers!
Welcome back to the forum 
No worries, we can put it back together 
Yep, deleting the EEPROM will erase the configuration of the controller, so now your controller doesn’t know its name and its components.
The process of updating to v0.20 is a bit more complicated than the other updates, and the update log in this forum describes a few steps that are necessary to upgrade also the configuration after upgrading the firmware (step 3).
If you skip this step, the controller has a new firmware with an old configuration and it can’t start.
We’ll contact you privately to make a quick call and sort it out.
Cheers!