Buy a new TF  card probably a 8-16GB and  insert the TF card on the tool card slot, turn the tool on then off a couple times and reset to factory. then clik the link below, download the latest Autel PC Suite from Autel. If don't work you need to call Autel.
 https://pro.auteltech.com/autelsupport/Diagnostics/24587.jhtml?createrId=482736&view=1