I'm wondering if it's possible, after whatever preparations might be necessary (TeamViewer locked on in the background from phone startup to startup, prior sharing of device codes, etc), to control the trusted/familiar Android phone from my desktop pc that requires no further interaction by the phone's user at all. I have a very old father to whom I would like to mail a TeamViewer pre-prepared phone to show him the wonders of smartphones, and he lives hundreds of miles away and has arthritis and feeble fingers and needs careful remote training with an absolute minimum required by him. Thanks.