Pico update help. Want original firmware back.

I recently updated the Pico to the Smart mode update and I am trying to reverse it. Looking for some help to do that. I thought I could easily go back and forth to try it but it seems like I can't. Not sure why. I have the Rx 200 and it is easy to go back and put the old one on if there is a glitch or for whatever reason.
The new version of the Pico does not show the volts anymore and I don't really care for the smart screen look. Anyone reverse it before? It's for a Mac.

OK, I didn't install it, but I did DL the firmware to see what was offered. In your folder you should see 2 different ones. V1.00 and V1.01 Maybe reinstall the V1,00 and see if that takes you back?

Yep, just re-install the 1.0 version like Huckleberried said. If you mess something up and it doesn't boot -- don't freak out...just re-flash.