[RE: Keyboard backlight]
I don't think it stays on when it's closed. It's good that it stays on while the screen is on and maybe a bit longer. But it usually never turns off when it's sitting on the desk open and left alone. But at other times the setting changes to off while it's in my pocket so I also can't trust it to be always on. It feels like it's always off when I pull it out in the dark.
I did check to confirm the backlight turns off when the lid is closed on mine. If I turn it on, it will stay on if I leave it sitting on the desk open, even when Android locks.
I'm OK with this. I usually just use [Fn]+[Shift]+(
| [N] ) to change the kbd brightness so it's not much bother to turn on or off. I also usually have it at the lowest brightness when I turn it on, so I'm pretty sure the power drain is negligible especially since this Cosmo has poor battery life to begin with. (that might get better with the new firmware which is supposed to significantly improve battery drain)
I haven't ever had the keyboard brightness do an un-commanded change.
[RE: settings go back to default]
I've read about it at least once here. So, I'm not sure if you're lucky or I'm unlucky.
I haven't had this happen where all settings go to default.
However, I *have* had it happen where I have touched the CoDi screen while my Cosmo is open, and accidentally turned things on or off that way. Like today I accidentally turned on battery saver mode when I touched CoDi while Cosmo is open.
It has been noted in the forum (and I have confirmed) that even when the Planet logo is showing, CoDi will accept input. You can swipe the controls down and poke icons.
I always lock my device with fingerprint lock before putting it in a pocket so accidental CoDi input won't do anything, but if yours is unlocked or swipe-locked that might explain some of your un-commanded settings changes. WiFi, Bluetooth, Airplane Mode, Battery Saver, etc. can all be accidentally switched from the CoDi menus.