This is to inform You that I am using NOKIA 6 and recently upgraded the OS to OREO with OFFICIAL update available on Nokia Device. Now, I am getting an issue that My Nokia device is displaying network on 4g slot but while making a call it does not display any sim in 4g slot. After making a Restart The device is working fine without any issue. But after using Sim network WIFI ; the issue occurs again . I am using Vodafone 4g network in 4g slot. Now I have Reset the device on factory settings but the issue is still occurring.
Thanks and Regards