Hello, on my new Galaxy M21 every time I reset my phone SD card error is reported and I'm forced to format it in order to use it. When phone is running I can copy there file and read it back without problem. But when I restart the phone again I'm noted that SD card can not be read and I need to format. Then I can use it again but because of format I lost of course all the data... Since it is working normally during phone running I'm assuming the SD card is ok and so is the slot. But some error must happen during restart. When I put SD card back to my old lenovo it works well even after multiple restarts.
Is there something I can do? Some setting to change? Or are you aware of such a problem and perhaps preparing some sw patch already? The card I'm using is 16GB Kingston microSDHC I.
Please perform the below mentioned steps to resolve the issue:
1. Remove and reinsert the microSD. Sometimes this can help resolve the issue. Make sure the SD card is correctly inserted into the slot or tray.
2. Test the card with another device. Use the card with another device. Often a PC will have higher compatibility with file systems not supported by Android.
NOTE: Before formatting the SD card, test it in another device and back up any important data.
For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
so card works well in other device. And reinsert to samsung phone does not help. Anyway I tried different sd card and it works in my samsung phone. So it seems there is some incompatibility between new samsung and old 8 GB Kingston microSDHC card... I just will buy new sd card that is fine...
