further testing it will consistently start and continue on if I disconnect the wire away from the base. The mower can be in the charger to start or in the yard it'll spin around wait, wait some more and then spin up the blade and take off. No one else has a lawnbott and no one has an electric fence nearby so I'm kinda worried about runaway lawnbott   :'(. Just tried it the bot reports no signal. I plugged it back in and it went off towards the boarder with some low bushes. Somehow hitting it at an angle as never before with the growth a little long and ended up somehow snagging a bit of bush and the wire! I am newer to the 3500, but from what I understand border issues was a major issue with the 3500 series, and one of the reasons I did not get one. But I believe - and basically I can attest to it 2 months into it, that this seems to have been solved by the 3510 series. Maybe an upgrade from 3500 to 3510 would help. I often see or hear that an upgrade be used to solve a problem with the Lawnbott. Will someone tell me why an upgrade should be used to solve  a bad design or faulty part. In any other industry that i have worked with this would trigger a recall. Can you imagine Toyota telling there costumes that they need to do a upgrade to