 
                                HONOR 400
                                                Android 15
                                            
                                                                            1. Find "SIM management"
                                                    Press the settings icon.
                                                                                                    
                                                
                                                    Press Mobile network.
                                                                                                    
                                                
                                                    Press SIM management.
                                                                                                    
                                                
2. Turn use of price plan on or off
                                                    Press the required price plan.
                                                                                                    
                                                
                                                    Press the indicator next to "Enable" to turn use of the price plan on or off.
                                                                                                    
                                                
                                                    Press arrow left.
                                                                                                    
                                                
3. Select default price plan for mobile data
                                                    Press the required price plan next to "Default mobile data".
                                                                                                    
                                                
4. Select default price plan for text messaging
                                                    Press the required price plan next to "Default SMS SIM".
                                                                                                    
                                                
5. Select default price plan for voice calls
                                                    Press Default calling SIM.
                                                                                                    
                                                
                                                    Press the required setting.
                                                                                                    
                                                
6. Return to the home screen
                                                    Slide your finger upwards starting from the bottom of the screen to return to the home screen.
                                                                                                    
                                                

















