Xiaomi 17

Find "Select carrier"

Press Settings.

Find "Select carrier"

Press Mobile networks.

Find "Select carrier"

Press the name of the SIM.

Find "Select carrier"

Press Select carrier.

Select network manually

Press the indicator next to "Automatically select network" to turn off the function.

Select network manually

Press Next.

Select network manually

Press OK.

Select network manually

Press OK and your phone will search for networks.

Select network manually

Press the required network.

Select network automatically

Press the indicator next to "Automatically select network" to turn on the function.

Return to the home screen

Slide your finger upwards starting from the bottom of the screen to return to the home screen.