I asked this while chatting with customer service the other day and was given this as our only instruction by tech support, after the guy Ersina emailed tech support my concern as follows:
"Hi I have a customer that would like to know if their is a procedure to back up his tool? He would like to back up his car software on data on to a SD card. Do you guys have instructions on how to do it? More and more customers ask us daily since they see the message in the tool about doing it. Thank you."
The reply from Vivian Tang at tech support was this:
"To back up the software of Maxisys, please ask customer to connect his maxisys to computer by USB cable and then copy the folder called Scan to computer as backup."