I dont know abour your m31 but mine is unable to detect SD Card too. I restart the phone and the issue gets solved but out of nowhere, a message again appears saying,"unable to detect SD Card".
Please let me know if you guys are facing the same....
Thank you for sharing your concern. We acknowledge your query and apologize for the same. And please follow the easy troubleshooting steps which might help to solve the issue.
1. Disconnect anything plugged into the headphone jack like, selfie stick, headphone, Bluetooth, etc.
2. Remove any third-party case, protective films, or any other accessory that usually comes in contact with your device. (If any)
Check device volume settings Please follow the below steps:
Step1: Navigate to apps screen and tap on Settings. Step2: Tap on Sound & vibration. Step3: Tap on Volume. Step4: Drag the volume adjustment bar left or right to increase or decrease the device volume.
To verify, play music and check the music sound. If the sound quality is good, then your speaker is working fine.
Clear Sound picker data
Step1: Got to Settings Step2: Apps Step3: Filter and sort Step4: Enable "Show system apps" Step5: Tap "OK" Step6: Search Sound Picker Step7: Tap on storage Step8: clear data of Sound picker.
In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Ask question).
Thank you for writing to us. Warm Regards, Samsung Customer Support.
