Mi 11 - Network and Display Configuration; SIM Cards and Mobile Networks

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Press and hold the Power button until the menu appears. Tap Reboot.
SIM cards & mobile networks
Before enjoying surfing the Internet with your phone, you need to insert a SIM
card or SIM cards into your phone.
1. Inserting SIM, USIM, and UIM cards
Use the provided SIM tray extraction tool to take the SIM tray out of the
bottom of your phone.
Place your SIM card inside the tray and insert it into your device. If your
phone has two SIM cards inserted, you can set one as the default mobile
data SIM and the other as the default calling SIM, or set call forwarding
between the two SIM cards.
2. Removing SIM, USIM, and UIM cards
Use the provided SIM tray extraction tool to take the SIM tray out of the
bottom of your phone.
Remove your SIM card from the tray and insert the tray back into your
device.
3. SIM, USIM, and UIM card settings
You can only use the services of one mobile carrier on a single SIM device.
Dual SIM phones provide more options depending on the number of SIM
cards installed.
On a dual SIM device, you can set default SIM cards for making calls and
using mobile data in Settings > SIM cards & mobile networks.
You can edit SIM card names which are displayed on the dial pad. To do
this, go to Settings > SIM cards & mobile networks and tap your SIM
card.
Options for changing preferred network types are available
in Settings > SIM cards & mobile networks > SIM card settings >
Preferred network type.
Display
You can set the screen brightness, color scheme, and Dark mode according
to your preferences.
1. Adjusting brightness
Go to Settings > Display > Brightness level, and enable Automatic
brightness.
Your phone will automatically adjust the screen brightness according to
the ambient lighting conditions.
You can manually adjust the screen brightness using either of the following
methods:
• Swipe down from the top right of the status bar to open the notification
panel. Drag the slider to adjust the screen brightness.
• Go to Settings > Display > Brightness level. Drag the slider to adjust
the screen brightness.