Hmm, the initial two restarts I did had no effect. Just did a third and tried the remaining RJ70… it fired right up and the AP engaged just fine. I also noticed it loaded considerably quicker than the 85 and 100 did on their initial bootup. ON those the displays stayed dark for at least 30 seconds on the first two tests.
The AP now appears to be working on those variants as well. So yeah, turn it off and on a few times and see if it fixes it, I guess 