Insight Managed: Well, if attempting the "Use the Reset Button" or the "Erase the settings" (that's excluded in your query why ever), the device will be factory reset. However, the Day Zero config and with a possible Internet access, it will probably connect to the Insight cloud, and bang, wonders of cloud technology, ... the reset will be undone, the previous config is back. Cool, isn't it?
So if you want to get rid of it*, or re-purpose for another site or project: First remove the device from Insight ... then do the reset (or it's already done once it's removed, so do it again) as shown above.
Do you have other factory reset "features" in mind?
