Samsung has identified a software issue with certain Samsung A11 phones purchased between July 6th and August 10th across different wireless providers. If your A11 has not been updated to the latest software, you may experience limited or no access to the internet or have trouble making/receiving calls.
Steps to update the software on your Samsung A11 phone:
After latest software version has been installed, turn off Airplane mode, and proceed with using your phone.
Software version can be viewed in Settings > About Phone.
The updated version is A115USQU2ATG2.
If you continue to experience any issues after updating the software to the latest version, please call 1-800 726-7864 for assistance or to replace the phone.