Follow the steps below to use Wifi Hotspot in your phone
1. Go to "Setting"
2. Tap on " More"
3. Then click on " Thethering & Portable Hotspot"
4. Tap on "Setup Wifi Hotspot"
5. Enter User ID and Password"
6. Click on "Ok"
7. Tap on the " Portable Hospot Toggle" to turn the Hotspot on or off.
You can check the full specs here: Redmi 5
To set an MP3 file for use as custom ringtone system-wide, do the following:
1.Copy the MP3 files to your phone.
2.Go to Settings > Sound > Device ringtone.
3.Tap the Add button to launch the media manager app.
4.You will see a list of music files stored on your phone.
5.Your selected MP3 track will now be your custom ringtone.
You can see full specs here: Redmi 5
Specs: Redmi 5