To cast your phone screen on your TV you need to have Chromecast.
Follow the steps to successfully cast your screen-
Cast from Chromecast-enabled apps to your TV
Note: The Cast button isn't located in the same place on all Chromecast-enabled apps.
You can now cast videos, movies and TV shows directly to your TV.
To stop casting, tap the Cast button and then Disconnect.
You can also watch this step-by-step guide to do the same
You can check the complete specs of this phone: Huawei Mate 10 Lite
You can follow the link for details: Huawei Mate 10 lite
This video shows how to set up a wifi hotspot on your Huawei Mate 9 and Huawei Mate 10 and Mate 10 lite to share your data connection with other devices. You can also share your Wifi connection as well! Check it out.
To insert the SIM in Mate 10 Pro
Simply take out the SIM ejector tool and then open the SIM tray
Place the SIM card in proper direction and put the SIM card tray back
You can follow the steps shown in the video:
You can also check the specs of the phone here :Mate 10 Pro specs
You can check the given
Go to the Dialer app.
Browse and select the contact you want to edit a ring tone for.
Select the pen-shaped icon to edit the contact.
Then select the Ringtone button.
A popup window will show up with all your ringtone sounds.
Browse and select the song you want to use as a ringtone.
If the ringtone you made isnt listed hit Add and find it in your device storage, then select it.
Hide Photos and Videos on your phone
To hide photos and videos on your phone you will have to download the app named "Gallery Vault" and follow the steps below:
And you will see a confirmation message on your screen as shown in the Image below
And you are done!
You can also check the video below for your reference: