Hi there.
My micro SD on Chuwi Hi10XR disconnects by itself after a few minutes. I changed several Micro SD and it is the same. They do stay connected on another device.
Please reply
Hi Maury, I don’t have the same device as you have but I had a similar problem on my UBOOK pro tablet. I did solve the problem by very carefully using a toothpick to press the sd card more into the slot until I felt it clicked into place. I appreciate that you would have to take great care in not damaging your device so only look at this way as a last resort. I just think that the slot for the sd card needs that little extra help in sitting inside. Please wait until perhaps someone else will have a better option for you to try.