Problem On Sim1

[Denmarino]

hello!
Now i'm on the 6.4.21 miui 7 and it works very well.
In these days it happens that after a call on SIM 2, or when the phone is in standby with the sim 2 disactivated, the sim 1 disappears and is no longer visible until i restart the phone.
Now The only thing that i can try is to invert sim 1 with sim 2 slot to see if The problem persist.....
Do you have an idea?
I want to wait to upgrade at miui 8 if possible......
Thank you!

 

[Cecco]

Did you tried a factory reset? Also try remove your sim and put in back maybe it is little bit moved from the correct position

 

[Denmarino]

At the moment 24 hours without the problem only with the revert of slot.....
It'possible that you have reason!