Plug in mini usb at side of tool and your pc copy and paste all the contents of sd card
to a folder on your pc , but I notice there is an issue with two or more file cant be
copied because file names are too long with only two silly options skip or cancel I
skipped mine don't know what problem will be if IT do a back up without those files will
wait if and when I get problem to back up and post results

If I insert mini usb connector ate the side of the maxisys and in the PC, it will not recognise the maxisys as a storage medium?

How to get to the maxisys (usb standard connector on top of the maxisys has same issue). I would like to copy the contents to keep them safe since Autel is beginning to do updates that I don't like that much?

 The USB on top is for connecting devices to the MaxiSys (the MaxiSys is the host in this case). The mini USB on the side (OTG) is for connecting to the PC where the PC is the host and the MaxiSys is the device. I would suggest stopping the MaxiSys program before trying to copy files as some may be in use. You can do this by going to the home screen and selecting the icon near the bottom of the screen (looks like 2 squares, 3rd one in from the left) and swiping the MaxiSys program to the right. This will close the program or any program you swipe to the right. Then connect to your PC using OTG port. The MaxiSys should then give you the option to turn on USB storage. MaxiSys should then show up as a drive on PC. I have also used this method for other custom changes like adding additional Quick Links to the MaxiSys (such as ALLDATA and Mitchell DIY sites as I do not have subscriptions to the pro sites.

 Thnx, will try this; not just for this case (found another solution) but for other things possibly coming in the future.