Disabling WordPress Updates and AutoUpdates

I’m working on a website that is changing ownership and for a variety of reasons the previous owner turned off auto updates for WordPress, and stopped updating at 4.2.11, and has hidden access to the update options in wp-admin.

There are two lines in config/settings.php that were part of this and I’ve changed these to false (and then removed them)

define( ‘DISALLOW_FILE_MODS’, true );
define( ‘AUTOMATIC_UPDATER_DISABLED’, true );

but this hasn’t changed anything. The Dashboard is only showing Right Now/Wordpress News, and the Screen Options only has those two items as tick boxes.

Any suggestions for what else will be affecting the dashboard’s minimal options?

Mark