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No title
 Question: 
 
Why 
does the SIM setting change after ending phone calls? 
  
Answer:  
When
phone call
is connected, the SIM setting of the messages
is changed
to the SIM number set as Message Preferred SIM. 
(EX,
Preferred SIM is set to SIM1
> Send
message using
SIM2 > Send
call using
SIM1, 2 any > Change to SIM1 when checking the
message composition screen) 
                                                                                                                            
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