I read that backing up one specific car make from the scan folder no longer works after you have already updated to the newer one and don't like the newer one, delete it and re paste the older version , you may no longer have authorization to access the older software

 Im having a similar problem but it looks like im not alone, autel is very very dark on the subject of how to properly back up thier units. in my case i made a full back up of my system a month before my license expired and two months later the whole stysem crashed. it wont boot up at all just a back lit screen no logo nothing. its almost as if autel has engineered the software this way. this site if covered with people that are having the same issue. by the way my supposed back up doesn't do anything. the system that is dead is my max sys mini. i went without for a couple months but recently picked up a maxsys pro thinking it may be better. Guess what? wouldn't boot up right out of the box! after 9 re-starts i was able to get it to come up and stay up long enough to update the main system. now it works but is very glitchy. autel says they will be happy to "fix" my older unit if i pay them 600 bucks for a new licence then mail them my old unit but they would simply send me a new one which has half the capability of my old one. apparently after telling us this unit would do all kinds of applications and after many law suits they downgraded our units through updates. in essence stealing from us. my advice? if you can manage a real back up do it then lock your unit so they cant screw it up with an "accidental update" as for me im sending this pro unit back just as soon as i can actually reach someone in autel support. this from past experience should only take 6 phone calls, five messages, two transfers and about 4 weeks.