P1607869346331 , via OnePlus 8T T-Mobile , Feb 23, 2021 : The adapter (USB C to micro SD) I purchased on Amazon works perfectly on my son's Redme phone. He uses micro SD any capacity. My 8T crashes, why?
KluGe , Feb 23, 2021 : I really do not know. Why? You did not provide enough information to answer your question.
Mongolicious , via OnePlus 8T , Feb 23, 2021 : It's like calling the doctor and saying "Why did I throw up? My wife didn't throw up". You need to give us some more information. Try some other device like a USB-stick, external HDD/SSD and check if you still have the same problem. Do you use Oneplus file manager or some third party one? I have no issues with external media on my oneplus 8t so I cannot answer with the info provided by you.