Go to developer options and turn on the option called force activities to be resizable and restart.DEVELOPER OPTIONS 》 FORCE ACTIVITIES TO BE RESIZABLE(turn on)》 RESTART DEVICE.
settings-> software update-> download manually. if it's available then you can download. major software upgrade dates are unknown. but security updates might be available.
go to home screen settings by long pressing the home screen and select the desired action . what to happen when scroll down. app drawer or notification.
