With the intuit to share a little more information, @clive-dent shared a possible solution:
http://community.m5stack.com/topic/1464/m5stickc-screen-don-t-work/18
@m5stack I really believe it will be important to do something like as in MacOS Catalina FTDI Driver, to explain how to solve. A youtube video could be a quickly nice way to propagate that procedure.
Why I'm asking that? For most of us, have no problem of have problems like that (and others of we not facing yet). It is more important for us, find quickly the solution. I know the FAQ have something like that, but It will not show details and the M5Stick-C have a LIPO battery (can explode).
Please, consider this suggestion. Because you have made incredible products and I really like to use them.