The SDK fixed the problem thank you! I imaged the Jetbot version 0.4.3 (JetPack version 4.5) found here: Using SD Card Image - JetBot
Then I turned on the nano with the PIOLED and turned it off after I saw it was working so I could work on it later. I probably turned it off while it could have been running something important? Hope this helps, and thanks again for your help :)