Network issue

[Dhamsab2]

I am facing connectivity issue like poor singal, no voice while in call. Same place same sim with different devices gives great connectity. But in m31s I face issue like repeated internet loss, poor signal strength, caller unable to hear my voice. Need help 

[goodthings]

My dear reset network setting of both Sim one by one and than reset all settings of your's device in general management settings also Flight ✈️ mode on n off one time, also without any Sim in slots restart your's device one time, interchange your's Sim into sim slot. Thanks.

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your concern kindly visit this mentioned link to resolve your Galaxy device network issue: https://www.samsung.com/in/support/mobile-devices/samsung-galaxy-smartphone-how-to-optimise-network-...

In case the issue still occurs kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/

Warm Regards,
Samsung Customer Support