Note 4 AT&T Marshmalow

This phone is only note 4 without update. . . Any got the the update

how to make notification bar look like aosp marshmalow

hello every one is there any methode to make the notification pannel look like the aosp marshmallow and thanks for help

j700h marshmalow multi-windows enable

hi for all
rootd device
install (x- plore) apps go to menu and configuration and (root access) select last superusermod + mount writable
Go to root/system/ directory and open build.prop file Open with text edit
Search ( ro.build.type=user) and change to (ro.build.type=userdebug) save and exit
Reboot your device.
enable Developer Options: go to Settings > About Phone > tap on Build Number seven times.
Go back to Settings > Developer Options > go to the bottom of the Drawing category and enable Multi-window from the options.