Why isn't the time, date and weather displayed on the main screen of Samsung mobile phone?

If you need to set weather gadgets for Samsung mobile phones, you can:

1. Under the standby desktop, press and hold the blank screen -widget- find widget- press and hold the widget to move to the desktop.

2. Add City: After adding the weather widget, click the weather widget on the homepage, and click "+"on the page that appears to search for the added city. (If it is the first time to use it, you can enter the city name in the input box to search. )