Please be informed that latest software version android 10 will expected to be released in April’20 for the device A50. Any update regarding this will be notified in the Samsung Members app under the notice section.
However, to resolve the network issue, please follow the below mentioned step:
1) Check Network mode and set it to Auto Connect. (Settings > Connections> Mobile Network> Network mode> Select LTE/3G/2G auto connect).
2) Search for the Network Manually via following path (Menu> Settings> Connections>More Networks> Mobile Networks> Network Operators> Select Manual Search).
3) Perform the reset network setting (Go to the settings>>general management>>reset>>reset network settings).
4) If still issue persists then we would suggest you to contact your service provider.
For further mentioned issues, please register your concern in the Samsung members app (Open Samsung members app>click on “+“icon>send feedback>Error report/ Ask Questions).
Team Samsung Members