Please read my post about Galaxy A51 problems :
and about Bluetooth and Wi-Fi problem :
To resolve the issue please follow the below mentioned steps:
1- Both devices should be under the Bluetooth range.
2- Unpair all Bluetooth devices which were connected earlier.
3- Check the mentioned issue in safe mode.
4- Reset network settings (Scroll down notification panel >Settings>General Management>Reset >Reset network settings).
1) Ensure that network frequency of your device is selected on Auto-mode.
Settings > Connections > More Networks > Mobile Networks > Network Mode > Select Auto mode (GSM/WCDMA/LTE)
2) Search for the Network Manually by the steps as mentioned:
Settings > Connections > More Networks > Mobile Networks > Network Operators > Select Manual Search.
3) Check via another SIM card in the device.
4) Reset network settings (Settings > General Management > Reset > Reset network settings).
Note: Kindly once coordinate with the network service provider,
If still issue persists, kindly visit nearest service center for physical inspection of your device. Service center personnel will provide you the further resolution.
Follow the link mentioned below-
Regarding screen recorder and screenshot feature, we appreciate your valuable comments as this would assist us to improve our services. Will convey the relevant update as soon as possible.
Team Samsung Members