I have a Samsung galaxy s8. I was using an external card reader to access a micro sd card. Initially it worked fine, but lately I have been having some odd behavior. The first time I connect the card reader to the phone, it works fine, I can access files on the microsd card. However if disconnect and reconnect the the microsd card, it isn't detected. If I attach the card reader to a windows PC, it says an error was detected and scan the drive. Generally if I restart the phone, it detects the card again.
I'm at a loss for what's going on. To complicate matters, I am not trying to read the sd card internally. I am using a USB-c to USB-a adapter to connect the phone to an SD card reader and I am using an SD to Microsd adapter. I have tried multiple usb-c to usb-a cables, and multiple micro sd - sd card adapters. Both USB-C to USB-A cables are the same type, so it could still be some wort of cable issue, but I don't think so.
This isn't something I am using for phone storage, I have some trail cameras and the microSD cards are from them. I want to be able to access the pictures on the microsd card in the field and copy the images to my phone storage.
This seems more like a software issue than a hardware issue, but I'm not completely sure. I know android 9 (which is what my phone has) is getting pretty old, so I'm not sure if that's the issue, but it seems like it could be.