HP-41CX Emulator for Android?

[MikeSD]

More progress. That "trick" that brings up the menu has settings for the haptic feedback. That works too.

I have successfully built an overlay for a test program and verified the method of importing templates.

Now, the only thing that's keeping this from being perfect, is figuring out why the ON button doesn't work. It still will not turn on, once I import programs or overlays. Prior to that operation, I can turn the calc ON and OFF. But after importing, if I use long press, it's OFF for good, until I uninstall and reinstall everything.

Just a nit, because I really don't have to use ON/OFF

Update: Found a way to turn it back ON, without uninstalling and reinstalling. A soft reset can fix the problem. But it sometimes takes 2 or 3 tries before it resets.